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OUTLOOK.PST(5)		libpst Utilities - Version 0.6		OUTLOOK.PST(5)

NAME
       outlook.pst - format of MS Outlook .pst file

SYNOPSIS
       outlook.pst

OVERVIEW
       Low level or primitive items in a .pst file are identified by an I_ID
       value. Higher level or composite items in a .pst file are identified by
       a D_ID value. There are two separate b-trees indexed by these I_ID and
       D_ID values. Starting with Outlook 2003, the file format changed from
       one with 32 bit pointers, to one with 64 bit pointers. We describe both
       formats here.

32 BIT FILE HEADER
       The 32 bit file header is located at offset 0 in the .pst file.

	   0000	 21 42 44 4e 49 f8 64 d9  53 4d 0e 00 13 00 01 01
	   0010	 00 00 00 00 00 00 00 00  50 d6 03 00 bd 1e 02 00
	   0020	 08 4c 00 00 00 04 00 00  00 04 00 00 0f 04 00 00
	   0030	 0d 40 00 00 99 0a 01 00  18 04 00 00 0d 40 00 00
	   0040	 0d 40 00 00 11 80 00 00  02 04 00 00 0a 04 00 00
	   0050	 00 04 00 00 00 04 00 00  0f 04 00 00 0f 04 00 00
	   0060	 0f 04 00 00 0d 40 00 00  00 04 00 00 00 04 00 00
	   0070	 04 40 00 00 00 04 00 00  00 04 00 00 00 04 00 00
	   0080	 00 04 00 00 00 04 00 00  00 04 00 00 00 04 00 00
	   0090	 00 04 00 00 00 04 00 00  00 04 00 00 00 04 00 00
	   00a0	 0c 09 00 00 00 00 00 00  00 04 27 00 00 24 23 00
	   00b0	 c0 09 0a 00 00 c8 00 00  bc 1e 02 00 00 7e 0c 00
	   00c0	 b4 1e 02 00 00 54 00 00  01 00 00 00 23 55 44 d1
	   00d0	 5a 4f ce 6b 80 ff ff ff  00 00 00 00 00 00 00 00
	   00e0	 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
	   00f0	 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
	   0100	 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
	   0110	 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
	   0120	 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
	   0130	 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
	   0140	 00 00 00 00 00 00 00 00  00 00 00 00 3f ff ff ff
	   0150	 ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff
	   0160	 ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff
	   0170	 ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff
	   0180	 ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff
	   0190	 ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff
	   01a0	 ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff
	   01b0	 ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff
	   01c0	 ff ff ff ff ff ff ff ff  ff ff ff ff 80 01 00 00
	   01d0	 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
	   01e0	 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
	   01f0	 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00

	   0000	 signature	 [4 bytes] 0x4e444221 constant
	   000a	 indexType	 [1 byte]  0x0e	      constant
	   01cd	 encryptionType	 [1 byte]  0x01	      in this case
	   00a8	 total file size [4 bytes] 0x270400   in this case
	   00c0	 backPointer1	 [4 bytes] 0x021eb4   in this case
	   00c4	 offsetIndex1	 [4 bytes] 0x005400   in this case
	   00b8	 backPointer2	 [4 bytes] 0x021ebc   in this case
	   00bc	 offsetIndex2	 [4 bytes] 0x0c7e00   in this case

       We only support index types 0x0e, 0x0f, 0x15, and 0x17, and encryption
       types 0x00, 0x01 and 0x02. Index type 0x0e is the older 32 bit Outlook
       format. Index type 0x0f seems to be rare, and so far the data seems to
       be identical to that in type 0x0e files. Index type 0x17 is the newer
       64 bit Outlook format. Index type 0x15 seems to be rare, and according
       to the libpff project should have the same format as type 0x17 files.
       It was found in a 64-bit pst file created by Visual Recovery. It may be
       that index types less than 0x10 are 32 bit, and index types greater
       than or equal to 0x10 are 64 bit, and the low order four bits of the
       index type is some subtype or minor version number.

       Encryption type 0x00 is no encryption, type 0x01 is "compressible"
       encryption which is a simple substitution cipher, and type 0x02 is
       "strong" encryption, which is a simple three rotor Enigma cipher from
       WWII.

       offsetIndex1 is the file offset of the root of the index1 b-tree, which
       contains (I_ID, offset, size, unknown) tuples for each item in the
       file. backPointer1 is the value that should appear in the parent
       pointer of that root node.

       offsetIndex2 is the file offset of the root of the index2 b-tree, which
       contains (D_ID, DESC-I_ID, TREE-I_ID, PARENT-D_ID) tuples for each item
       in the file. backPointer2 is the value that should appear in the parent
       pointer of that root node.

64 BIT FILE HEADER
       The 64 bit file header is located at offset 0 in the .pst file.

	   0000	 21 42 44 4e 03 02 23 b2  53 4d 17 00 13 00 01 01
	   0010	 00 00 00 00 00 00 00 00  04 00 00 00 01 00 00 00
	   0020	 8b 00 00 00 00 00 00 00  1d 00 00 00 00 04 00 00
	   0030	 00 04 00 00 04 04 00 00  00 40 00 00 02 00 01 00
	   0040	 00 04 00 00 00 04 00 00  00 04 00 00 00 80 00 00
	   0050	 00 04 00 00 00 04 00 00  00 04 00 00 00 04 00 00
	   0060	 04 04 00 00 04 04 00 00  04 04 00 00 00 04 00 00
	   0070	 00 04 00 00 00 04 00 00  00 04 00 00 00 04 00 00
	   0080	 00 04 00 00 00 04 00 00  00 04 00 00 00 04 00 00
	   0090	 00 04 00 00 00 04 00 00  00 04 00 00 00 04 00 00
	   00a0	 00 04 00 00 00 04 00 00  02 04 00 00 00 00 00 00
	   00b0	 00 00 00 00 00 00 00 00  00 24 04 00 00 00 00 00
	   00c0	 00 44 00 00 00 00 00 00  00 71 03 00 00 00 00 00
	   00d0	 00 22 00 00 00 00 00 00  83 00 00 00 00 00 00 00
	   00e0	 00 6a 00 00 00 00 00 00  8a 00 00 00 00 00 00 00
	   00f0	 00 60 00 00 00 00 00 00  01 00 00 00 00 00 00 00
	   0100	 ff 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
	   0110	 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
	   0120	 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
	   0130	 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
	   0140	 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
	   0150	 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
	   0160	 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
	   0170	 00 00 00 00 00 00 00 00  00 00 00 00 00 00 00 00
	   0180	 7f ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff
	   0190	 ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff
	   01a0	 ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff
	   01b0	 ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff
	   01c0	 ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff
	   01d0	 ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff
	   01e0	 ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff
	   01f0	 ff ff ff ff ff ff ff ff  ff ff ff ff ff ff ff ff
	   0200	 80 00 00 00 e8 00 00 00  00 00 00 00 c4 68 cb 89

	   0000	 signature	 [4 bytes] 0x4e444221 constant
	   000a	 indexType	 [1 byte]  0x17	      constant
	   0201	 encryptionType	 [1 byte]  0x00	      in this case
	   00b8	 total file size [8 bytes] 0x042400   in this case
	   00e8	 backPointer1	 [8 bytes] 0x00008a   in this case
	   00f0	 offsetIndex1	 [8 bytes] 0x006000   in this case
	   00d8	 backPointer2	 [8 bytes] 0x000083   in this case
	   00e0	 offsetIndex2	 [8 bytes] 0x006a00   in this case

32 BIT INDEX 1 NODE
       The 32 bit index1 b-tree nodes are 512 byte blocks with the following
       format.

	   0000	 04 00 00 00  8a 1e 02 00  00 1c 0b 00
	   000c	 58 27 03 00  b3 1e 02 00  00 52 00 00
	   0018	 00 00 00 00  00 00 00 00  00 00 00 00
	   0024	 00 00 00 00  00 00 00 00  00 00 00 00
	   0030	 00 00 00 00  00 00 00 00  00 00 00 00
	   003c	 00 00 00 00  00 00 00 00  00 00 00 00
	   0048	 00 00 00 00  00 00 00 00  00 00 00 00
	   0054	 00 00 00 00  00 00 00 00  00 00 00 00
	   0060	 00 00 00 00  00 00 00 00  00 00 00 00
	   006c	 00 00 00 00  00 00 00 00  00 00 00 00
	   0078	 00 00 00 00  00 00 00 00  00 00 00 00
	   0084	 00 00 00 00  00 00 00 00  00 00 00 00
	   0090	 00 00 00 00  00 00 00 00  00 00 00 00
	   009c	 00 00 00 00  00 00 00 00  00 00 00 00
	   00a8	 00 00 00 00  00 00 00 00  00 00 00 00
	   00b4	 00 00 00 00  00 00 00 00  00 00 00 00
	   00c0	 00 00 00 00  00 00 00 00  00 00 00 00
	   00cc	 00 00 00 00  00 00 00 00  00 00 00 00
	   00d8	 00 00 00 00  00 00 00 00  00 00 00 00
	   00e4	 00 00 00 00  00 00 00 00  00 00 00 00
	   00f0	 00 00 00 00  00 00 00 00  00 00 00 00
	   00fc	 00 00 00 00  00 00 00 00  00 00 00 00
	   0108	 00 00 00 00  00 00 00 00  00 00 00 00
	   0114	 00 00 00 00  00 00 00 00  00 00 00 00
	   0120	 00 00 00 00  00 00 00 00  00 00 00 00
	   012c	 00 00 00 00  00 00 00 00  00 00 00 00
	   0138	 00 00 00 00  00 00 00 00  00 00 00 00
	   0144	 00 00 00 00  00 00 00 00  00 00 00 00
	   0150	 00 00 00 00  00 00 00 00  00 00 00 00
	   015c	 00 00 00 00  00 00 00 00  00 00 00 00
	   0168	 00 00 00 00  00 00 00 00  00 00 00 00
	   0174	 00 00 00 00  00 00 00 00  00 00 00 00
	   0180	 00 00 00 00  00 00 00 00  00 00 00 00
	   018c	 00 00 00 00  00 00 00 00  00 00 00 00
	   0198	 00 00 00 00  00 00 00 00  00 00 00 00
	   01a4	 00 00 00 00  00 00 00 00  00 00 00 00
	   01b0	 00 00 00 00  00 00 00 00  00 00 00 00
	   01bc	 00 00 00 00  00 00 00 00  00 00 00 00
	   01c8	 00 00 00 00  00 00 00 00  00 00 00 00
	   01d4	 00 00 00 00  00 00 00 00  00 00 00 00
	   01e0	 00 00 00 00  00 00 00 00  00 00 00 00
	   01ec	 00 00 00 00  02 29 0c 02  80 80 b6 4a
	   01f8	 b4 1e 02 00  27 9c cc 56

	   01f0	 itemCount	 [1 byte]  0x02	      in this case
	   01f1	 maxItemCount	 [1 byte]  0x29	      constant
	   01f2	 itemSize	 [1 byte]  0x0c	      constant
	   01f3	 nodeLevel	 [1 byte]  0x02	      in this case
	   01f8	 backPointer	 [4 bytes] 0x021eb4   in this case

       The itemCount specifies the number of 12 byte records that are active.
       The nodeLevel is non-zero for this style of nodes. The leaf nodes have
       a different format. The backPointer must match the backPointer from the
       triple that pointed to this node.

       Each item in this node is a triple of (I_ID, backPointer, offset) where
       the offset points to the next deeper node in the tree, the backPointer
       value must match the backPointer in that deeper node, and I_ID is the
       lowest I_ID value in the subtree.

64 BIT INDEX 1 NODE
       The 64 bit index1 b-tree nodes are 512 byte blocks with the following
       format.

	   0000	 04 00 00 00  00 00 00 00  88 00 00 00
	   000C	 00 00 00 00  00 48 00 00  00 00 00 00
	   0018	 74 00 00 00  00 00 00 00  86 00 00 00
	   0024	 00 00 00 00  00 54 00 00  00 00 00 00
	   0030	 00 00 00 00  00 00 00 00  00 00 00 00
	   003C	 00 00 00 00  00 00 00 00  00 00 00 00
	   0048	 00 00 00 00  00 00 00 00  00 00 00 00
	   0054	 00 00 00 00  00 00 00 00  00 00 00 00
	   0060	 00 00 00 00  00 00 00 00  00 00 00 00
	   006C	 00 00 00 00  00 00 00 00  00 00 00 00
	   0078	 00 00 00 00  00 00 00 00  00 00 00 00
	   0084	 00 00 00 00  00 00 00 00  00 00 00 00
	   0090	 00 00 00 00  00 00 00 00  00 00 00 00
	   009C	 00 00 00 00  00 00 00 00  00 00 00 00
	   00A8	 00 00 00 00  00 00 00 00  00 00 00 00
	   00B4	 00 00 00 00  00 00 00 00  00 00 00 00
	   00C0	 00 00 00 00  00 00 00 00  00 00 00 00
	   00CC	 00 00 00 00  00 00 00 00  00 00 00 00
	   00D8	 00 00 00 00  00 00 00 00  00 00 00 00
	   00E4	 00 00 00 00  00 00 00 00  00 00 00 00
	   00F0	 00 00 00 00  00 00 00 00  00 00 00 00
	   00FC	 00 00 00 00  00 00 00 00  00 00 00 00
	   0108	 00 00 00 00  00 00 00 00  00 00 00 00
	   0114	 00 00 00 00  00 00 00 00  00 00 00 00
	   0120	 00 00 00 00  00 00 00 00  00 00 00 00
	   012C	 00 00 00 00  00 00 00 00  00 00 00 00
	   0138	 00 00 00 00  00 00 00 00  00 00 00 00
	   0144	 00 00 00 00  00 00 00 00  00 00 00 00
	   0150	 00 00 00 00  00 00 00 00  00 00 00 00
	   015C	 00 00 00 00  00 00 00 00  00 00 00 00
	   0168	 00 00 00 00  00 00 00 00  00 00 00 00
	   0174	 00 00 00 00  00 00 00 00  00 00 00 00
	   0180	 00 00 00 00  00 00 00 00  00 00 00 00
	   018C	 00 00 00 00  00 00 00 00  00 00 00 00
	   0198	 00 00 00 00  00 00 00 00  00 00 00 00
	   01A4	 00 00 00 00  00 00 00 00  00 00 00 00
	   01B0	 00 00 00 00  00 00 00 00  00 00 00 00
	   01BC	 00 00 00 00  00 00 00 00  00 00 00 00
	   01C8	 00 00 00 00  00 00 00 00  00 00 00 00
	   01D4	 00 00 00 00  00 00 00 00  00 00 00 00
	   01E0	 00 00 00 00  00 00 00 00  02 14 18 01
	   01EC	 00 00 00 00  80 80 8a 60  68 e5 b5 19
	   01F8	 8a 00 00 00  00 00 00 00

	   01e8	 itemCount	 [1 byte]  0x02	      in this case
	   01e9	 maxItemCount	 [1 byte]  0x14	      constant
	   01ea	 itemSize	 [1 byte]  0x18	      constant
	   01eb	 nodeLevel	 [1 byte]  0x01	      in this case
	   01f8	 backPointer	 [8 bytes] 0x00008a   in this case

       The itemCount specifies the number of 24 byte records that are active.
       The nodeLevel is non-zero for this style of nodes. The leaf nodes have
       a different format. The backPointer must match the backPointer from the
       triple that pointed to this node.

       Each item in this node is a triple of (I_ID, backPointer, offset) where
       the offset points to the next deeper node in the tree, the backPointer
       value must match the backPointer in that deeper node, and I_ID is the
       lowest I_ID value in the subtree.

32 BIT INDEX 1 LEAF NODE
       The 32 bit index1 b-tree leaf nodes are 512 byte blocks with the
       following format.

	   0000	 04 00 00 00  00 58 00 00  64 00  0f 00
	   000c	 08 00 00 00  80 58 00 00  ac 00  06 00
	   0018	 0c 00 00 00  40 59 00 00  ac 00  06 00
	   0024	 10 00 00 00  00 5a 00 00  bc 00  03 00
	   0030	 14 00 00 00  00 5b 00 00  a4 00  02 00
	   003c	 18 00 00 00  c0 5b 00 00  64 00  02 00
	   0048	 1c 00 00 00  40 5c 00 00  5c 00  02 00
	   0054	 50 00 00 00  80 62 00 00  60 00  02 00
	   0060	 74 00 00 00  00 77 00 00  5e 00  02 00
	   006c	 7c 00 00 00  80 77 00 00  66 00  02 00
	   0078	 84 00 00 00  00 76 00 00  ca 00  02 00
	   0084	 88 00 00 00  00 63 00 00  52 00  02 00
	   0090	 90 00 00 00  00 79 00 00  58 00  02 00
	   009c	 cc 00 00 00  c0 61 00 00  76 00  02 00
	   00a8	 e0 00 00 00  00 61 00 00  74 00  02 00
	   00b4	 f4 00 00 00  80 65 00 00  6e 00  02 00
	   00c0	 8c 01 00 00  40 60 00 00  70 00  02 00
	   00cc	 ea 01 00 00  80 61 00 00  10 00  02 00
	   00d8	 ec 01 00 00  40 8a 00 00  f3 01  02 00
	   00e4	 f0 01 00 00  80 93 00 00  f4 1f  02 00
	   00f0	 fa 01 00 00  c0 7f 00 00  10 00  02 00
	   00fc	 00 02 00 00  00 89 00 00  34 01  02 00
	   0108	 1c 02 00 00  40 ec 00 00  12 06  02 00
	   0114	 22 02 00 00  00 84 00 00  10 00  02 00
	   0120	 24 02 00 00  c0 ea 00 00  3c 01  02 00
	   012c	 40 02 00 00  00 f4 00 00  0a 06  02 00
	   0138	 46 02 00 00  40 8c 00 00  10 00  02 00
	   0144	 48 02 00 00  80 f2 00 00  36 01  02 00
	   0150	 64 02 00 00  80 fb 00 00  bf 07  02 00
	   015c	 6a 02 00 00  80 63 00 00  10 00  02 00
	   0168	 6c 02 00 00  40 fa 00 00  2a 01  02 00
	   0174	 6c 02 00 00  40 fa 00 00  2a 01  02 00
	   0180	 6c 02 00 00  40 fa 00 00  2a 01  02 00
	   018c	 6c 02 00 00  40 fa 00 00  2a 01  02 00
	   0198	 6c 02 00 00  40 fa 00 00  2a 01  02 00
	   01a4	 6c 02 00 00  40 fa 00 00  2a 01  02 00
	   01b0	 64 02 00 00  80 fb 00 00  bf 07  02 00
	   01bc	 64 02 00 00  80 fb 00 00  bf 07  02 00
	   01c8	 64 02 00 00  80 fb 00 00  bf 07  02 00
	   01d4	 64 02 00 00  80 fb 00 00  bf 07  02 00
	   01e0	 64 02 00 00  80 fb 00 00  bf 07  02 00
	   01ec	 00 00 00 00  1f 29 0c 00  80 80  5b b3
	   01f8	 5a 67 01 00  4f ae 70 a7

	   01f0	 itemCount	 [1 byte]  0x1f	      in this case
	   01f1	 maxItemCount	 [1 byte]  0x29	      constant
	   01f2	 itemSize	 [1 byte]  0x0c	      constant
	   01f3	 nodeLevel	 [1 byte]  0x00	      defines a leaf node
	   01f8	 backPointer	 [4 bytes] 0x01675a   in this case

       The itemCount specifies the number of 12 byte records that are active.
       The nodeLevel is zero for these leaf nodes. The backPointer must match
       the backPointer from the triple that pointed to this node.

       Each item in this node is a tuple of (I_ID, offset, size, unknown) The
       two low order bits of the I_ID value seem to be flags. I have never
       seen a case with bit zero set. Bit one indicates that the item is not
       encrypted. Note that references to these I_ID values elsewhere may have
       the low order bit set (and I don´t know what that means), but when we
       do the search in this tree we need to clear that bit so that we can
       find the correct item.

64 BIT INDEX 1 LEAF NODE
       The 64 bit index1 b-tree leaf nodes are 512 byte blocks with the
       following format.

	   0000	 04 00 00 00  00 00 00 00  00 58 00 00
	   000C	 00 00 00 00  6c 00 05 00  00 00 00 00
	   0018	 08 00 00 00  00 00 00 00  80 58 00 00
	   0024	 00 00 00 00  b4 00 06 00  d8 22 37 08
	   0030	 0c 00 00 00  00 00 00 00  80 59 00 00
	   003C	 00 00 00 00  ac 00 07 00  d8 22 37 08
	   0048	 10 00 00 00  00 00 00 00  40 5a 00 00
	   0054	 00 00 00 00  bc 00 03 00  d8 22 37 08
	   0060	 14 00 00 00  00 00 00 00  40 5b 00 00
	   006C	 00 00 00 00  a4 00 02 00  d8 22 37 08
	   0078	 18 00 00 00  00 00 00 00  00 5c 00 00
	   0084	 00 00 00 00  64 00 02 00  d8 22 37 08
	   0090	 1c 00 00 00  00 00 00 00  80 5c 00 00
	   009C	 00 00 00 00  5c 00 02 00  d8 22 37 08
	   00A8	 24 00 00 00  00 00 00 00  80 5d 00 00
	   00B4	 00 00 00 00  72 00 02 00  d8 22 37 08
	   00C0	 34 00 00 00  00 00 00 00  00 70 00 00
	   00CC	 00 00 00 00  8c 00 02 00  00 0d 00 00
	   00D8	 38 00 00 00  00 00 00 00  c0 71 00 00
	   00E4	 00 00 00 00  5c 00 02 00  d8 22 9c 00
	   00F0	 40 00 00 00  00 00 00 00  40 72 00 00
	   00FC	 00 00 00 00  26 00 02 00  d8 22 9c 00
	   0108	 4c 00 00 00  00 00 00 00  80 5f 00 00
	   0114	 00 00 00 00  3e 00 02 00  d8 22 9c 00
	   0120	 5c 00 00 00  00 00 00 00  c0 76 00 00
	   012C	 00 00 00 00  8c 00 02 00  d8 22 9c 00
	   0138	 64 00 00 00  00 00 00 00  40 75 00 00
	   0144	 00 00 00 00  76 00 02 00  d8 22 9c 00
	   0150	 6c 00 00 00  00 00 00 00  c0 73 00 00
	   015C	 00 00 00 00  5e 00 02 00  d8 22 9c 00
	   0168	 70 00 00 00  00 00 00 00  80 72 00 00
	   0174	 00 00 00 00  1e 01 02 00  d8 22 9c 00
	   0180	 70 00 00 00  00 00 00 00  80 72 00 00
	   018C	 00 00 00 00  1e 01 02 00  d8 22 9c 00
	   0198	 70 00 00 00  00 00 00 00  80 72 00 00
	   01A4	 00 00 00 00  1e 01 02 00  d8 22 9c 00
	   01B0	 74 00 00 00  00 00 00 00  40 74 00 00
	   01BC	 00 00 00 00  e0 00 02 00  d8 22 9c 00
	   01C8	 7c 00 00 00  00 00 00 00  80 77 00 00
	   01D4	 00 00 00 00  dc 00 02 00  d8 22 9c 00
	   01E0	 00 00 00 00  00 00 00 00  10 14 18 00
	   01EC	 00 00 00 00  80 80 88 48  3f 50 0b 04
	   01F8	 88 00 00 00  00 00 00 00

	   01e8	 itemCount	 [1 byte]  0x10	      in this case
	   01e9	 maxItemCount	 [1 byte]  0x14	      constant
	   01ea	 itemSize	 [1 byte]  0x18	      constant
	   01eb	 nodeLevel	 [1 byte]  0x00	      defines a leaf node
	   01f8	 backPointer	 [8 bytes] 0x000088   in this case

       The itemCount specifies the number of 24 byte records that are active.
       The nodeLevel is zero for these leaf nodes. The backPointer must match
       the backPointer from the triple that pointed to this node.

       Each item in this node is a tuple of (I_ID, offset, size, unknown) The
       two low order bits of the I_ID value seem to be flags. I have never
       seen a case with bit zero set. Bit one indicates that the item is not
       encrypted. Note that references to these I_ID values elsewhere may have
       the low order bit set (and I don´t know what that means), but when we
       do the search in this tree we need to clear that bit so that we can
       find the correct item.

32 BIT INDEX 2 NODE
       The 32 bit index2 b-tree nodes are 512 byte blocks with the following
       format.

	   0000	 21 00 00 00  bb 1e 02 00  00 e2 0b 00
	   000c	 64 78 20 00  8c 1e 02 00  00 dc 0b 00
	   0018	 00 00 00 00  00 00 00 00  00 00 00 00
	   0024	 00 00 00 00  00 00 00 00  00 00 00 00
	   0030	 00 00 00 00  00 00 00 00  00 00 00 00
	   003c	 00 00 00 00  00 00 00 00  00 00 00 00
	   0048	 00 00 00 00  00 00 00 00  00 00 00 00
	   0054	 00 00 00 00  00 00 00 00  00 00 00 00
	   0060	 00 00 00 00  00 00 00 00  00 00 00 00
	   006c	 00 00 00 00  00 00 00 00  00 00 00 00
	   0078	 00 00 00 00  00 00 00 00  00 00 00 00
	   0084	 00 00 00 00  00 00 00 00  00 00 00 00
	   0090	 00 00 00 00  00 00 00 00  00 00 00 00
	   009c	 00 00 00 00  00 00 00 00  00 00 00 00
	   00a8	 00 00 00 00  00 00 00 00  00 00 00 00
	   00b4	 00 00 00 00  00 00 00 00  00 00 00 00
	   00c0	 00 00 00 00  00 00 00 00  00 00 00 00
	   00cc	 00 00 00 00  00 00 00 00  00 00 00 00
	   00d8	 00 00 00 00  00 00 00 00  00 00 00 00
	   00e4	 00 00 00 00  00 00 00 00  00 00 00 00
	   00f0	 00 00 00 00  00 00 00 00  00 00 00 00
	   00fc	 00 00 00 00  00 00 00 00  00 00 00 00
	   0108	 00 00 00 00  00 00 00 00  00 00 00 00
	   0114	 00 00 00 00  00 00 00 00  00 00 00 00
	   0120	 00 00 00 00  00 00 00 00  00 00 00 00
	   012c	 00 00 00 00  00 00 00 00  00 00 00 00
	   0138	 00 00 00 00  00 00 00 00  00 00 00 00
	   0144	 00 00 00 00  00 00 00 00  00 00 00 00
	   0150	 00 00 00 00  00 00 00 00  00 00 00 00
	   015c	 00 00 00 00  00 00 00 00  00 00 00 00
	   0168	 00 00 00 00  00 00 00 00  00 00 00 00
	   0174	 00 00 00 00  00 00 00 00  00 00 00 00
	   0180	 00 00 00 00  00 00 00 00  00 00 00 00
	   018c	 00 00 00 00  00 00 00 00  00 00 00 00
	   0198	 00 00 00 00  00 00 00 00  00 00 00 00
	   01a4	 00 00 00 00  00 00 00 00  00 00 00 00
	   01b0	 00 00 00 00  00 00 00 00  00 00 00 00
	   01bc	 00 00 00 00  00 00 00 00  00 00 00 00
	   01c8	 00 00 00 00  00 00 00 00  00 00 00 00
	   01d4	 00 00 00 00  00 00 00 00  00 00 00 00
	   01e0	 00 00 00 00  00 00 00 00  00 00 00 00
	   01ec	 00 00 00 00  02 29 0c 02  81 81 b2 60
	   01f8	 bc 1e 02 00  7e 70 dc e3

	   01f0	 itemCount	 [1 byte]  0x02	      in this case
	   01f1	 maxItemCount	 [1 byte]  0x29	      constant
	   01f2	 itemSize	 [1 byte]  0x0c	      constant
	   01f3	 nodeLevel	 [1 byte]  0x02	      in this case
	   01f8	 backPointer	 [4 bytes] 0x021ebc   in this case

       The itemCount specifies the number of 12 byte records that are active.
       The nodeLevel is non-zero for this style of nodes. The leaf nodes have
       a different format. The backPointer must match the backPointer from the
       triple that pointed to this node.

       Each item in this node is a triple of (D_ID, backPointer, offset) where
       the offset points to the next deeper node in the tree, the backPointer
       value must match the backPointer in that deeper node, and D_ID is the
       lowest D_ID value in the subtree.

64 BIT INDEX 2 NODE
       The 64 bit index2 b-tree nodes are 512 byte blocks with the following
       format.

	   0000	 21 00 00 00  00 00 00 00  77 00 00 00
	   000C	 00 00 00 00  00 56 00 00  00 00 00 00
	   0018	 4c 06 00 00  00 00 00 00  82 00 00 00
	   0024	 00 00 00 00  00 68 00 00  00 00 00 00
	   0030	 4f 80 00 00  00 00 00 00  84 00 00 00
	   003C	 00 00 00 00  00 6e 00 00  00 00 00 00
	   0048	 00 00 00 00  00 00 00 00  00 00 00 00
	   0054	 00 00 00 00  00 00 00 00  00 00 00 00
	   0060	 00 00 00 00  00 00 00 00  00 00 00 00
	   006C	 00 00 00 00  00 00 00 00  00 00 00 00
	   0078	 00 00 00 00  00 00 00 00  00 00 00 00
	   0084	 00 00 00 00  00 00 00 00  00 00 00 00
	   0090	 00 00 00 00  00 00 00 00  00 00 00 00
	   009C	 00 00 00 00  00 00 00 00  00 00 00 00
	   00A8	 00 00 00 00  00 00 00 00  00 00 00 00
	   00B4	 00 00 00 00  00 00 00 00  00 00 00 00
	   00C0	 00 00 00 00  00 00 00 00  00 00 00 00
	   00CC	 00 00 00 00  00 00 00 00  00 00 00 00
	   00D8	 00 00 00 00  00 00 00 00  00 00 00 00
	   00E4	 00 00 00 00  00 00 00 00  00 00 00 00
	   00F0	 00 00 00 00  00 00 00 00  00 00 00 00
	   00FC	 00 00 00 00  00 00 00 00  00 00 00 00
	   0108	 00 00 00 00  00 00 00 00  00 00 00 00
	   0114	 00 00 00 00  00 00 00 00  00 00 00 00
	   0120	 00 00 00 00  00 00 00 00  00 00 00 00
	   012C	 00 00 00 00  00 00 00 00  00 00 00 00
	   0138	 00 00 00 00  00 00 00 00  00 00 00 00
	   0144	 00 00 00 00  00 00 00 00  00 00 00 00
	   0150	 00 00 00 00  00 00 00 00  00 00 00 00
	   015C	 00 00 00 00  00 00 00 00  00 00 00 00
	   0168	 00 00 00 00  00 00 00 00  00 00 00 00
	   0174	 00 00 00 00  00 00 00 00  00 00 00 00
	   0180	 00 00 00 00  00 00 00 00  00 00 00 00
	   018C	 00 00 00 00  00 00 00 00  00 00 00 00
	   0198	 00 00 00 00  00 00 00 00  00 00 00 00
	   01A4	 00 00 00 00  00 00 00 00  00 00 00 00
	   01B0	 00 00 00 00  00 00 00 00  00 00 00 00
	   01BC	 00 00 00 00  00 00 00 00  00 00 00 00
	   01C8	 00 00 00 00  00 00 00 00  00 00 00 00
	   01D4	 00 00 00 00  00 00 00 00  00 00 00 00
	   01E0	 00 00 00 00  00 00 00 00  03 14 18 01
	   01EC	 00 00 00 00  81 81 83 6a  49 da f3 d3
	   01F8	 83 00 00 00  00 00 00 00

	   01e8	 itemCount	 [1 byte]  0x03	      in this case
	   01e9	 maxItemCount	 [1 byte]  0x14	      constant
	   01ea	 itemSize	 [1 byte]  0x18	      constant
	   01eb	 nodeLevel	 [1 byte]  0x01	      in this case
	   01f8	 backPointer	 [8 bytes] 0x000083   in this case

       The itemCount specifies the number of 24 byte records that are active.
       The nodeLevel is non-zero for this style of nodes. The leaf nodes have
       a different format. The backPointer must match the backPointer from the
       triple that pointed to this node.

       Each item in this node is a triple of (D_ID, backPointer, offset) where
       the offset points to the next deeper node in the tree, the backPointer
       value must match the backPointer in that deeper node, and D_ID is the
       lowest D_ID value in the subtree.

32 BIT INDEX 2 LEAF NODE
       The 32 bit index2 b-tree leaf nodes are 512 byte blocks with the
       following format.

	   0000	 21 00 00 00  38 e6 00 00  00 00 00 00	00 00 00 00
	   0010	 61 00 00 00  2c a8 02 00  36 a8 02 00	00 00 00 00
	   0020	 22 01 00 00  20 a2 02 00  00 00 00 00	22 01 00 00
	   0030	 2d 01 00 00  88 7b 03 00  00 00 00 00	00 00 00 00
	   0040	 2e 01 00 00  08 00 00 00  00 00 00 00	00 00 00 00
	   0050	 2f 01 00 00  0c 00 00 00  00 00 00 00	00 00 00 00
	   0060	 e1 01 00 00  00 00 00 00  00 00 00 00	00 00 00 00
	   0070	 01 02 00 00  b4 e4 02 00  00 00 00 00	00 00 00 00
	   0080	 61 02 00 00  a0 e4 02 00  00 00 00 00	00 00 00 00
	   0090	 0d 06 00 00  04 00 00 00  00 00 00 00	00 00 00 00
	   00A0	 0e 06 00 00  08 00 00 00  00 00 00 00	00 00 00 00
	   00B0	 0f 06 00 00  0c 00 00 00  00 00 00 00	00 00 00 00
	   00C0	 10 06 00 00  10 00 00 00  00 00 00 00	00 00 00 00
	   00D0	 2b 06 00 00  84 00 00 00  00 00 00 00	00 00 00 00
	   00E0	 4c 06 00 00  1c 00 00 00  00 00 00 00	00 00 00 00
	   00F0	 71 06 00 00  18 00 00 00  00 00 00 00	00 00 00 00
	   0100	 92 06 00 00  14 00 00 00  00 00 00 00	00 00 00 00
	   0110	 23 22 00 00  14 a0 02 00  00 00 00 00	22 01 00 00
	   0120	 26 22 00 00  00 00 00 00  00 00 00 00	00 00 00 00
	   0130	 27 22 00 00  1c a0 02 00  00 00 00 00	00 00 00 00
	   0140	 22 80 00 00  50 00 00 00  00 00 00 00	22 01 00 00
	   0150	 2d 80 00 00  f8 9f 02 00  00 00 00 00	00 00 00 00
	   0160	 2e 80 00 00  08 00 00 00  00 00 00 00	00 00 00 00
	   0170	 2f 80 00 00  34 e6 00 00  00 00 00 00	00 00 00 00
	   0180	 42 80 00 00  3c 6d 02 00  00 00 00 00	22 80 00 00
	   0190	 4d 80 00 00  04 00 00 00  00 00 00 00	00 00 00 00
	   01A0	 4e 80 00 00  10 6d 02 00  00 00 00 00	00 00 00 00
	   01B0	 4f 80 00 00  ec 23 00 00  00 00 00 00	00 00 00 00
	   01C0	 62 80 00 00  38 78 02 00  00 00 00 00	22 01 00 00
	   01D0	 6d 80 00 00  34 78 02 00  00 00 00 00	00 00 00 00
	   01E0	 6e 80 00 00  08 00 00 00  00 00 00 00	00 00 00 00
	   01F0	 10 1f 10 00  81 81 a0 9a  ae 1e 02 00	89 44 6a 0f

	   01f0	 itemCount	 [1 byte]  0x10	      in this case
	   01f1	 maxItemCount	 [1 byte]  0x1f	      constant
	   01f2	 itemSize	 [1 byte]  0x10	      constant
	   01f3	 nodeLevel	 [1 byte]  0x00	      in this case
	   01f8	 backPointer	 [4 bytes] 0x021eae   in this case

       The itemCount specifies the number of 16 byte records that are active.
       The nodeLevel is zero for these leaf nodes. The backPointer must match
       the backPointer from the triple that pointed to this node.

       Each item in this node is a tuple of (D_ID, DESC-I_ID, TREE-I_ID,
       PARENT-D_ID) The DESC-I_ID points to the main data for this item
       (Associated Descriptor Items 0x7cec, 0xbcec, or 0x0101) via the index1
       tree. The TREE-I_ID is zero or points to an Associated Tree Item 0x0002
       via the index1 tree. The PARENT-D_ID points to the parent of this item
       in this index2 tree.

64 BIT INDEX 2 LEAF NODE
       The 64 bit index2 b-tree leaf nodes are 512 byte blocks with the
       following format.

	   0000	 21 00 00 00 00 00 00 00  74 00 00 00 00 00 00 00
	   0010	 00 00 00 00 00 00 00 00  00 00 00 00 02 00 00 00
	   0020	 61 00 00 00 00 00 00 00  34 00 00 00 00 00 00 00
	   0030	 00 00 00 00 00 00 00 00  00 00 00 00 02 00 00 00
	   0040	 22 01 00 00 00 00 00 00  4c 00 00 00 00 00 00 00
	   0050	 00 00 00 00 00 00 00 00  22 01 00 00 02 00 00 00
	   0060	 2d 01 00 00 00 00 00 00  70 00 00 00 00 00 00 00
	   0070	 00 00 00 00 00 00 00 00  00 00 00 00 02 00 00 00
	   0080	 2e 01 00 00 00 00 00 00  08 00 00 00 00 00 00 00
	   0090	 00 00 00 00 00 00 00 00  00 00 00 00 02 00 00 00
	   00A0	 2f 01 00 00 00 00 00 00  0c 00 00 00 00 00 00 00
	   00B0	 00 00 00 00 00 00 00 00  00 00 00 00 02 00 00 00
	   00C0	 e1 01 00 00 00 00 00 00  00 00 00 00 00 00 00 00
	   00D0	 00 00 00 00 00 00 00 00  00 00 00 00 d8 e3 13 00
	   00E0	 01 02 00 00 00 00 00 00  8c 00 00 00 00 00 00 00
	   00F0	 00 00 00 00 00 00 00 00  00 00 00 00 b0 e3 13 00
	   0100	 61 02 00 00 00 00 00 00  00 00 00 00 00 00 00 00
	   0110	 00 00 00 00 00 00 00 00  00 00 00 00 d8 e3 13 00
	   0120	 0d 06 00 00 00 00 00 00  04 00 00 00 00 00 00 00
	   0130	 00 00 00 00 00 00 00 00  00 00 00 00 02 00 00 00
	   0140	 0e 06 00 00 00 00 00 00  08 00 00 00 00 00 00 00
	   0150	 00 00 00 00 00 00 00 00  00 00 00 00 02 00 00 00
	   0160	 0f 06 00 00 00 00 00 00  0c 00 00 00 00 00 00 00
	   0170	 00 00 00 00 00 00 00 00  00 00 00 00 02 00 00 00
	   0180	 10 06 00 00 00 00 00 00  10 00 00 00 00 00 00 00
	   0190	 00 00 00 00 00 00 00 00  00 00 00 00 02 00 00 00
	   01A0	 2b 06 00 00 00 00 00 00  24 00 00 00 00 00 00 00
	   01B0	 00 00 00 00 00 00 00 00  00 00 00 00 02 00 00 00
	   01C0	 71 06 00 00 00 00 00 00  18 00 00 00 00 00 00 00
	   01D0	 00 00 00 00 00 00 00 00  00 00 00 00 02 00 00 00
	   01E0	 00 00 00 00 00 00 00 00  0e 0f 20 00 00 00 00 00
	   01F0	 81 81 77 56 f8 32 43 49  77 00 00 00 00 00 00 00

	   01e8	 itemCount	 [1 byte]  0x0e	      in this case
	   01e9	 maxItemCount	 [1 byte]  0x0f	      constant
	   01ea	 itemSize	 [1 byte]  0x20	      constant
	   01eb	 nodeLevel	 [1 byte]  0x00	      defines a leaf node
	   01f8	 backPointer	 [8 bytes] 0x000077   in this case

       The itemCount specifies the number of 32 byte records that are active.
       The nodeLevel is zero for these leaf nodes. The backPointer must match
       the backPointer from the triple that pointed to this node.

       Each item in this node is a tuple of (D_ID, DESC-I_ID, TREE-I_ID,
       PARENT-D_ID) The DESC-I_ID points to the main data for this item
       (Associated Descriptor Items 0x7cec, 0xbcec, or 0x0101) via the index1
       tree. The TREE-I_ID is zero or points to an Associated Tree Item 0x0002
       via the index1 tree. The PARENT-D_ID points to the parent of this item
       in this index2 tree.

32 BIT ASSOCIATED TREE ITEM 0X0002
       A D_ID value may point to an entry in the index2 tree with a non-zero
       TREE-I_ID which points to this descriptor block via the index1 tree. It
       maps local ID2 values (referenced in the main data for the original
       D_ID item) to I_ID values. This descriptor block contains triples of
       (ID2, I_ID, CHILD-I_ID) where the local ID2 data can be found via I_ID,
       and CHILD-I_ID is either zero or it points to another Associated Tree
       Item via the index1 tree.

       In the above 32 bit leaf node, we have a tuple of (0x61, 0x02a82c,
       0x02a836, 0) 0x02a836 is the I_ID of the associated tree, and we can
       lookup that I_ID value in the index1 b-tree to find the (offset,size)
       of the data in the .pst file.

	   0000	 02 00	01 00  9f 81 00 00  30 a8 02 00	 00 00 00 00

	   0000	 signature	 [2 bytes] 0x0002     constant
	   0002	 count		 [2 bytes] 0x0001     in this case
	     repeating
	   0004	 id2		 [4 bytes] 0x00819f   in this case
	   0008	 i_id		 [4 bytes] 0x02a830   in this case
	   000c	 child-i_id	 [4 bytes] 0	      in this case

64 BIT ASSOCIATED TREE ITEM 0X0002
       This descriptor block contains a tree that maps local ID2 values to
       I_ID entries, similar to the 32 bit version described above.

	   0000	 02 00 02 00  00 00 00 00  92 06 00 00	00 00 00 00
	   0010	 a8 00 00 00  00 00 00 00  00 00 00 00	00 00 00 00
	   0020	 3f 80 00 00  00 00 00 00  98 00 00 00	00 00 00 00
	   0030	 00 00 00 00  00 00 00 00

	   0000	 signature	 [2 bytes] 0x0002     constant
	   0002	 count		 [2 bytes] 0x0002     in this case
	   0004	 unknown	 [4 bytes] 0	      possibly constant
	     repeating
	   0008	 id2		 [4 bytes] 0x000692   in this case
	   000c	 unknown1	 [2 bytes] 0	      may be a count or size
	   000e	 unknown2	 [2 bytes] 0	      may be a count or size
	   0010	 i_id		 [8 bytes] 0x0000a8   in this case
	   0018	 child-i_id	 [8 bytes] 0	      in this case

ASSOCIATED DESCRIPTOR ITEM 0XBCEC
       Contains information about the item, which may be email, contact, or
       other outlook types. In the above leaf node, we have a tuple of (0x21,
       0x00e638, 0, 0) 0x00e638 is the I_ID of the associated descriptor, and
       we can lookup that I_ID value in the index1 b-tree to find the
       (offset,size) of the data in the .pst file. This descriptor is
       eventually decoded to a list of MAPI elements.

	   0000	 3c 01 ec bc  20 00 00 00  00 00 00 00	b5 02 06 00
	   0010	 40 00 00 00  f9 0f 02 01  60 00 00 00	01 30 1e 00
	   0020	 80 00 00 00  04 30 1e 00  00 00 00 00	df 35 03 00
	   0030	 ff 00 00 00  e0 35 02 01  a0 00 00 00	e2 35 02 01
	   0040	 e0 00 00 00  e3 35 02 01  c0 00 00 00	e4 35 02 01
	   0050	 00 01 00 00  e5 35 02 01  20 01 00 00	e6 35 02 01
	   0060	 40 01 00 00  e7 35 02 01  60 01 00 00	1e 66 0b 00
	   0070	 00 00 00 00  ff 67 03 00  00 00 00 00	d2 7f 17 d8
	   0080	 64 8c d5 11  83 24 00 50  04 86 95 45	53 74 61 6e
	   0090	 6c 65 79 00  00 00 00 d2  7f 17 d8 64	8c d5 11 83
	   00A0	 24 00 50 04  86 95 45 22  80 00 00 00	00 00 00 d2
	   00B0	 7f 17 d8 64  8c d5 11 83  24 00 50 04	86 95 45 42
	   00C0	 80 00 00 00  00 00 00 d2  7f 17 d8 64	8c d5 11 83
	   00D0	 24 00 50 04  86 95 45 a2  80 00 00 00	00 00 00 d2
	   00E0	 7f 17 d8 64  8c d5 11 83  24 00 50 04	86 95 45 c2
	   00F0	 80 00 00 00  00 00 00 d2  7f 17 d8 64	8c d5 11 83
	   0100	 24 00 50 04  86 95 45 e2  80 00 00 00	00 00 00 d2
	   0110	 7f 17 d8 64  8c d5 11 83  24 00 50 04	86 95 45 02
	   0120	 81 00 00 00  00 00 00 d2  7f 17 d8 64	8c d5 11 83
	   0130	 24 00 50 04  86 95 45 62  80 00 00 00	0b 00 00 00
	   0140	 0c 00 14 00  7c 00 8c 00  93 00 ab 00	c3 00 db 00
	   0150	 f3 00 0b 01  23 01 3b 01

	   0000	 indexOffset	 [2 bytes] 0x013c     in this case
	   0002	 signature	 [2 bytes] 0xbcec     constant
	   0004	 b5offset	 [4 bytes] 0x0020     index reference

       Note the signature of 0xbcec. There are other descriptor block formats
       with other signatures. Note the indexOffset of 0x013c - starting at
       that position in the descriptor block, we have an array of two byte
       integers. The first integer (0x000b) is a (count-1) of the number of
       overlapping pairs following the count. The first pair is (0, 0xc), the
       next pair is (0xc, 0x14) and the last (12th) pair is (0x123, 0x13b).
       These pairs are (start,end+1) offsets of items in this block. So we
       have count+2 integers following the count value.

       Note the b5offset of 0x0020, which is a type that I will call an index
       reference. Such index references have at least two different forms, and
       may point to data either in this block, or in some other block.
       External pointer references have the low order 4 bits all set, and are
       ID2 values that can be used to fetch data. This value of 0x0020 is an
       internal pointer reference, which needs to be right shifted by 4 bits
       to become 0x0002, which is then a byte offset to be added to the above
       indexOffset plus two (to skip the count), so it points to the (0xc,
       0x14) pair.

       So far we have only described internal index references where the high
       order 16 bits are zero. That suffices for single descriptor blocks. But
       in the case of the type 0x0101 descriptor block, we have an array of
       subblocks. In this case, the high order 16 bits of an internal index
       reference are used to select the subblock. Each subblock starts with a
       16 bit indexOffset which points to the count and array of 16 bit
       integer pairs which are offsets in the current subblock.

       Finally, we have the offset and size of the "b5" block located at
       offset 0xc with a size of 8 bytes in this descriptor block. The "b5"
       block has the following format:

	   0000	 signature	 [2 bytes] 0x02b5     constant
	   0002	 datasize	 [2 bytes] 0x0006     constant +2 for 8 byte entries
	   0004	 descoffset	 [4 bytes] 0x0040     index reference

       Note the descoffset of 0x0040, which again is an index reference. In
       this case, it is an internal pointer reference, which needs to be right
       shifted by 4 bits to become 0x0004, which is then a byte offset to be
       added to the above indexOffset plus two (to skip the count), so it
       points to the (0x14, 0x7c) pair. The datasize (6) plus the b5 code (02)
       gives the size of the entries, in this case 8 bytes. We now have the
       offset 0x14 of the descriptor array, composed of 8 byte entries that
       describe MAPI elements. Each descriptor entry has the following format:

	   0000	 itemType	 [2 bytes]
	   0002	 referenceType	 [2 bytes]
	   0004	 value		 [4 bytes]

       For some reference types (2, 3, 0xb) the value is used directly.
       Otherwise, the value is an index reference, which is either an ID2
       value, or an offset, to be right shifted by 4 bits and used to fetch a
       pair from the index table to find the offset and size of the item in
       this descriptor block.

       The following reference types are known, but not all of these are
       implemented in the code yet.

	   0x0002 - Signed 16bit value
	   0x0003 - Signed 32bit value
	   0x0004 - 4-byte floating point
	   0x0005 - Floating point double
	   0x0006 - Signed 64-bit int
	   0x0007 - Application Time
	   0x000A - 32-bit error value
	   0x000B - Boolean (non-zero = true)
	   0x000D - Embedded Object
	   0x0014 - 8-byte signed integer (64-bit)
	   0x001E - Null terminated String
	   0x001F - Unicode string
	   0x0040 - Systime - Filetime structure
	   0x0048 - OLE Guid
	   0x0102 - Binary data
	   0x1003 - Array of 32bit values
	   0x1014 - Array of 64bit values
	   0x101E - Array of Strings
	   0x1102 - Array of Binary data

       The following item types are known, but not all of these are
       implemented in the code yet.

	   0x0002  Alternate recipient allowed
	   0x0003  Extended Attributes Table
	   0x0017  Importance Level
	   0x001a  IPM Context, message class
	   0x0023  Global delivery report requested
	   0x0026  Priority
	   0x0029  Read Receipt
	   0x002b  Reassignment Prohibited
	   0x002e  Original Sensitivity
	   0x0032  Report time
	   0x0036  Sensitivity
	   0x0037  Email Subject
	   0x0039  Client submit time / date sent
	   0x003b  Outlook Address of Sender
	   0x003f  Outlook structure describing the recipient
	   0x0040  Name of the Outlook recipient structure
	   0x0041  Outlook structure describing the sender
	   0x0042  Name of the Outlook sender structure
	   0x0043  Another structure describing the recipient
	   0x0044  Name of the second recipient structure
	   0x004f  Reply-To Outlook Structure
	   0x0050  Name of the Reply-To structure
	   0x0051  Outlook Name of recipient
	   0x0052  Second Outlook name of recipient
	   0x0057  My address in TO field
	   0x0058  My address in CC field
	   0x0059  Message addressed to me
	   0x0063  Response requested
	   0x0064  Sender´s Address access method (SMTP, EX)
	   0x0065  Sender´s Address
	   0x0070  Conversation topic, processed subject (with Fwd:, Re, ... removed)
	   0x0071  Conversation index
	   0x0072  Original display BCC
	   0x0073  Original display CC
	   0x0074  Original display TO
	   0x0075  Recipient Address Access Method (SMTP, EX)
	   0x0076  Recipient´s Address
	   0x0077  Second Recipient Access Method (SMTP, EX)
	   0x0078  Second Recipient Address
	   0x007d  Email Header. This is the header that was attached to the email
	   0x0c04  NDR Reason code
	   0x0c05  NDR Diag code
	   0x0c06  Non-receipt notification requested
	   0x0c17  Reply Requested
	   0x0c19  Second sender structure
	   0x0c1a  Name of second sender structure
	   0x0c1b  Supplementary info
	   0x0c1d  Second outlook name of sender
	   0x0c1e  Second sender access method (SMTP, EX)
	   0x0c1f  Second Sender Address
	   0x0c20  NDR status code
	   0x0e01  Delete after submit
	   0x0e02  BCC Addresses
	   0x0e03  CC Addresses
	   0x0e04  SentTo Address
	   0x0e06  Date.
	   0x0e07  Flag bits
		       0x01 - Read
		       0x02 - Unmodified
		       0x04 - Submit
		       0x08 - Unsent
		       0x10 - Has Attachments
		       0x20 - From Me
		       0x40 - Associated
		       0x80 - Resend
		       0x100 - RN Pending
		       0x200 - NRN Pending
	   0x0e08  Message Size
	   0x0e0a  Sentmail EntryID
	   0x0e1f  Compressed RTF in Sync
	   0x0e20  Attachment Size
	   0x0ff9  binary record header
	   0x1000  Plain Text Email Body. Does not exist if the email doesn´t have a plain text version
	   0x1001  Report Text
	   0x1006  RTF Sync Body CRC
	   0x1007  RTF Sync Body character count
	   0x1008  RTF Sync body tag
	   0x1009  RTF Compressed body
	   0x1010  RTF whitespace prefix count
	   0x1011  RTF whitespace tailing count
	   0x1013  HTML Email Body. Does not exist if the email doesn´t have an HTML version
	   0x1035  Message ID
	   0x1042  In-Reply-To or Parent´s Message ID
	   0x1046  Return Path
	   0x3001  Folder Name? I have seen this value used for the contacts record aswell
	   0x3002  Address Type
	   0x3003  Contact Address
	   0x3004  Comment
	   0x3007  Date item creation
	   0x3008  Date item modification
	   0x300b  binary record header
	   0x35df  Valid Folder Mask
	   0x35e0  binary record contains a reference to "Top of Personal Folder" item
	   0x35e2  binary record contains a reference to default outbox item
	   0x35e3  binary record contains a reference to "Deleted Items" item
	   0x35e4  binary record contains a reference to sent items folder item
	   0x35e5  binary record contains a reference to user views folder item
	   0x35e6  binary record contains a reference to common views folder item
	   0x35e7  binary record contains a reference to "Search Root" item
	   0x3602  the number of emails stored in a folder
	   0x3603  the number of unread emails in a folder
	   0x360a  Has Subfolders
	   0x3613  the folder content description
	   0x3617  Associate Content count
	   0x3701  Binary Data attachment
	   0x3704  Attachment Filename
	   0x3705  Attachement method
	   0x3707  Attachment Filename long
	   0x370b  Attachment Position
	   0x370e  Attachment mime encoding
	   0x3710  Attachment mime Sequence
	   0x3a00  Contact´s Account name
	   0x3a01  Contact Alternate Recipient
	   0x3a02  Callback telephone number
	   0x3a03  Message Conversion Prohibited
	   0x3a05  Contacts Suffix
	   0x3a06  Contacts First Name
	   0x3a07  Contacts Government ID Number
	   0x3a08  Business Telephone Number
	   0x3a09  Home Telephone Number
	   0x3a0a  Contacts Initials
	   0x3a0b  Keyword
	   0x3a0c  Contact´s Language
	   0x3a0d  Contact´s Location
	   0x3a0e  Mail Permission
	   0x3a0f  MHS Common Name
	   0x3a10  Organizational ID #
	   0x3a11  Contacts Surname
	   0x3a12  original entry id
	   0x3a13  original display name
	   0x3a14  original search key
	   0x3a15  Default Postal Address
	   0x3a16  Company Name
	   0x3a17  Job Title
	   0x3a18  Department Name
	   0x3a19  Office Location
	   0x3a1a  Primary Telephone
	   0x3a1b  Business Phone Number 2
	   0x3a1c  Mobile Phone Number
	   0x3a1d  Radio Phone Number
	   0x3a1e  Car Phone Number
	   0x3a1f  Other Phone Number
	   0x3a20  Transmittable Display Name
	   0x3a21  Pager Phone Number
	   0x3a22  user certificate
	   0x3a23  Primary Fax Number
	   0x3a24  Business Fax Number
	   0x3a25  Home Fax Number
	   0x3a26  Business Address Country
	   0x3a27  Business Address City
	   0x3a28  Business Address State
	   0x3a29  Business Address Street
	   0x3a2a  Business Postal Code
	   0x3a2b  Business PO Box
	   0x3a2c  Telex Number
	   0x3a2d  ISDN Number
	   0x3a2e  Assistant Phone Number
	   0x3a2f  Home Phone 2
	   0x3a30  Assistant´s Name
	   0x3a40  Can receive Rich Text
	   0x3a41  Wedding Anniversary
	   0x3a42  Birthday
	   0x3a43  Hobbies
	   0x3a44  Middle Name
	   0x3a45  Display Name Prefix (Title)
	   0x3a46  Profession
	   0x3a47  Preferred By Name
	   0x3a48  Spouse´s Name
	   0x3a49  Computer Network Name
	   0x3a4a  Customer ID
	   0x3a4b  TTY/TDD Phone
	   0x3a4c  Ftp Site
	   0x3a4d  Gender
	   0x3a4e  Manager´s Name
	   0x3a4f  Nickname
	   0x3a50  Personal Home Page
	   0x3a51  Business Home Page
	   0x3a57  Company Main Phone
	   0x3a58  childrens names
	   0x3a59  Home Address City
	   0x3a5a  Home Address Country
	   0x3a5b  Home Address Postal Code
	   0x3a5c  Home Address State or Province
	   0x3a5d  Home Address Street
	   0x3a5e  Home Address Post Office Box
	   0x3a5f  Other Address City
	   0x3a60  Other Address Country
	   0x3a61  Other Address Postal Code
	   0x3a62  Other Address State
	   0x3a63  Other Address Street
	   0x3a64  Other Address Post Office box
	   0x3fde  Internet code page
	   0x3ffd  Message code page
	   0x65e3  Entry ID
	   0x67f2  Attachment ID2 value
	   0x67ff  Password checksum
	   0x6f02  Secure HTML Body
	   0x6f04  Secure Text Body
	   0x7c07  Top of folders RecID
	   0x8005  Contact Fullname
	   0x801a  Home Address
	   0x801b  Business Address
	   0x801c  Other Address
	   0x8045  Work Address Street
	   0x8046  Work Address City
	   0x8047  Work Address State
	   0x8048  Work Address Postal Code
	   0x8049  Work Address Country
	   0x804a  Work Address Post Office Box
	   0x8082  Email Address 1 Transport
	   0x8083  Email Address 1 Address
	   0x8084  Email Address 1 Description
	   0x8085  Email Address 1 Record
	   0x8092  Email Address 2 Transport
	   0x8093  Email Address 2 Address
	   0x8094  Email Address 2 Description
	   0x8095  Email Address 2 Record
	   0x80a2  Email Address 3 Transport
	   0x80a3  Email Address 3 Address
	   0x80a4  Email Address 3 Description
	   0x80a5  Email Address 3 Record
	   0x80d8  Internet Free/Busy
	   0x8205  Appointment shows as
	   0x8208  Appointment Location
	   0x820d  Appointment start
	   0x820e  Appointment end
	   0x8214  Label for appointment
	   0x8215  All day appointment flag
	   0x8216  Appointment recurrence data
	   0x8223  Appointment is recurring
	   0x8231  Recurrence type
	   0x8232  Recurrence description
	   0x8234  TimeZone of times
	   0x8235  Recurrence Start Time
	   0x8236  Recurrence End Time
	   0x8501  Reminder minutes before appointment start
	   0x8503  Reminder alarm
	   0x8516  Common Time Start
	   0x8517  Common Time End
	   0x851f  Play reminder sound filename
	   0x8530  Followup String
	   0x8534  Mileage
	   0x8535  Billing Information
	   0x8554  Outlook Version
	   0x8560  Appointment Reminder Time
	   0x8700  Journal Entry Type
	   0x8706  Start Timestamp
	   0x8708  End Timestamp
	   0x8712  Journal Entry Type - duplicate?

ASSOCIATED DESCRIPTOR ITEM 0X7CEC
       This style of descriptor block is similar to the 0xbcec format. This
       descriptor is also eventually decoded to a list of MAPI elements.

	   0000	 7a 01 ec 7c  40 00 00 00  00 00 00 00	b5 04 02 00
	   0010	 60 00 00 00  7c 18 60 00  60 00 62 00	65 00 20 00
	   0020	 00 00 80 00  00 00 00 00  00 00 03 00	20 0e 0c 00
	   0030	 04 03 1e 00  01 30 2c 00  04 0b 1e 00	03 37 28 00
	   0040	 04 0a 1e 00  04 37 14 00  04 05 03 00	05 37 10 00
	   0050	 04 04 1e 00  07 37 24 00  04 09 1e 00	08 37 20 00
	   0060	 04 08 02 01  0a 37 18 00  04 06 03 00	0b 37 08 00
	   0070	 04 02 1e 00  0d 37 1c 00  04 07 1e 00	0e 37 40 00
	   0080	 04 10 02 01  0f 37 30 00  04 0c 1e 00	11 37 34 00
	   0090	 04 0d 1e 00  12 37 3c 00  04 0f 1e 00	13 37 38 00
	   00A0	 04 0e 03 00  f2 67 00 00  04 00 03 00	f3 67 04 00
	   00B0	 04 01 03 00  09 69 44 00  04 11 03 00	fa 7f 5c 00
	   00C0	 04 15 40 00  fb 7f 4c 00  08 13 40 00	fc 7f 54 00
	   00D0	 08 14 03 00  fd 7f 48 00  04 12 0b 00	fe 7f 60 00
	   00E0	 01 16 0b 00  ff 7f 61 00  01 17 45 82	00 00 00 00
	   00F0	 45 82 00 00  78 3c 00 00  ff ff ff ff	49 1e 00 00
	   0100	 06 00 00 00  00 00 00 00  a0 00 00 00	00 00 00 00
	   0110	 00 00 00 00  00 00 00 00  00 00 00 00	c0 00 00 00
	   0120	 00 00 00 00  00 00 00 00  00 00 00 00	00 00 00 00
	   0130	 00 00 00 00  00 00 00 00  00 00 00 00	00 40 dd a3
	   0140	 57 45 b3 0c  00 40 dd a3  57 45 b3 0c	02 00 00 00
	   0150	 00 00 fa 10  3e 2a 86 48  86 f7 14 03	0a 03 02 01
	   0160	 4a 2e 20 44  61 76 69 64  20 4b 61 72	61 6d 27 73
	   0170	 20 42 69 72  74 68 64 61  79 00 06 00	00 00 0c 00
	   0180	 14 00 ea 00  f0 00 55 01  60 01 79 01

	   0000	 indexOffset	 [2 bytes] 0x017a     in this case
	   0002	 signature	 [2 bytes] 0x7cec     constant
	   0004	 7coffset	 [4 bytes] 0x0040     index reference

       Note the signature of 0x7cec. There are other descriptor block formats
       with other signatures. Note the indexOffset of 0x017a - starting at
       that position in the descriptor block, we have an array of two byte
       integers. The first integer (0x0006) is a (count-1) of the number of
       overlapping pairs following the count. The first pair is (0, 0xc), the
       next pair is (0xc, 0x14) and the last (7th) pair is (0x160, 0x179).
       These pairs are (start,end+1) offsets of items in this block. So we
       have count+2 integers following the count value.

       Note the 7coffset of 0x0040, which is an index reference. In this case,
       it is an internal reference pointer, which needs to be right shifted by
       4 bits to become 0x0004, which is then a byte offset to be added to the
       above indexOffset plus two (to skip the count), so it points to the
       (0x14, 0xea) pair. We have the offset and size of the "7c" block
       located at offset 0x14 with a size of 214 bytes in this case. The "7c"
       block starts with a header with the following format:

	   0000	 signature	 [1 bytes] 0x7c	      constant
	   0001	 itemCount	 [1 bytes] 0x18	      in this case
	   0002	 unknown	 [2 bytes] 0x0060     in this case
	   0004	 unknown	 [2 bytes] 0x0060     in this case
	   0006	 unknown	 [2 bytes] 0x0062     in this case
	   0008	 recordSize	 [2 bytes] 0x0065     in this case
	   000a	 b5Offset	 [4 bytes] 0x0020     index reference
	   000e	 index2Offset	 [4 bytes] 0x0080     index reference
	   0012	 unknown	 [2 bytes] 0x0000     in this case
	   0014	 unknown	 [2 bytes] 0x0000     in this case

       Note the b5Offset of 0x0020, which is an index reference. In this case,
       it is an internal reference pointer, which needs to be right shifted by
       4 bits to become 0x0002, which is then a byte offset to be added to the
       above indexOffset plus two (to skip the count), so it points to the
       (0xc, 0x14) pair. Finally, we have the offset and size of the "b5"
       block located at offset 0xc with a size of 8 bytes in this descriptor
       block. The "b5" block has the following format:

	   0000	 signature	 [2 bytes] 0x04b5     constant
	   0002	 datasize	 [2 bytes] 0x0002     +4 for 6 byte entries in this case
	   0004	 descoffset	 [4 bytes] 0x0060     index reference

       Note the descoffset of 0x0060, which again is an index reference. In
       this case, it is an internal pointer reference, which needs to be right
       shifted by 4 bits to become 0x0006, which is then a byte offset to be
       added to the above indexOffset plus two (to skip the count), so it
       points to the (0xea, 0xf0) pair. The datasize (2) plus the b5 code (04)
       gives the size of the entries, in this case 6 bytes. We now have the
       offset 0xea of an unused block of data in an unknown format, composed
       of 6 byte entries. That gives us (0xf0 - 0xea)/6 = 1, so we have a
       recordCount of one.

       We have seen cases where the descoffset in the b5 block is zero, and
       the index2Offset in the 7c block is zero. This has been seen for
       objects that seem to be attachments on messages that have been read.
       Before the message was read, it did not have any attachments.

       Note the index2Offset above of 0x0080, which again is an index
       reference. In this case, it is an internal pointer reference, which
       needs to be right shifted by 4 bits to become 0x0008, which is then a
       byte offset to be added to the above indexOffset plus two (to skip the
       count), so it points to the (0xf0, 0x155) pair. This is an array of
       tables of four byte integers. We will call these the IND2 tables. The
       size of each of these tables is specified by the recordSize field of
       the "7c" header. The number of these tables is the above recordCount
       value derived from the "b5" block.

       Now the remaining data in the "7c" block after the header starts at
       offset 0x2a. There should be itemCount 8 byte items here, with the
       following format:

	   0000	 referenceType	 [2 bytes]
	   0002	 itemType	 [2 bytes]
	   0004	 ind2Offset	 [2 bytes]
	   0006	 size		 [1 byte]
	   0007	 unknown	 [1 byte]

       The ind2Offset is a byte offset into the current IND2 table of some
       value. If that is a four byte integer value, then once we fetch that,
       we have the same triple (item type, reference type, value) as we find
       in the 0xbcec style descriptor blocks. If not, then this value is used
       directly. These 8 byte descriptors are processed recordCount times,
       each time using the next IND2 table. The item and reference types are
       as described above for the 0xbcec format descriptor block.

32 BIT ASSOCIATED DESCRIPTOR ITEM 0X0101
       This descriptor block contains a list of I_ID values. It is used when
       an I_ID (that would normally point to a type 0x7cec or 0xbcec
       descriptor block) contains more data than can fit in any single
       descriptor of those types. In this case, it points to a type 0x0101
       block, which contains a list of I_ID values that themselves point to
       the actual descriptor blocks. The total length value in the 0x0101
       header is the sum of the lengths of the blocks pointed to by the list
       of I_ID values. The result is an array of subblocks, that may contain
       index references where the high order 16 bits specify which descriptor
       subblock to use. Only the first descriptor subblock contains the
       signature (0xbcec or 0x7cec).

	   0000	 01 01 02 00  26 28 00 00  18 77 0c 00	b8 04 00 00

	   0000	 signature	 [2 bytes] 0x0101     constant
	   0002	 count		 [2 bytes] 0x0002     in this case
	   0004	 total length	 [4 bytes] 0x002826   in this case
	     repeating
	   0008	 i_id		 [4 bytes] 0x0c7718   in this case
	   000c	 i_id		 [4 bytes] 0x0004b8   in this case

64 BIT ASSOCIATED DESCRIPTOR ITEM 0X0101
       This descriptor block contains a list of I_ID values, similar to the 32
       bit version described above.

	   0000	 01 01 02 00  ea 29 00 00  10 83 00 00	00 00 00 00
	   0010	 1c 83 00 00  00 00 00 00

	   0000	 signature	 [2 bytes] 0x0101     constant
	   0002	 count		 [2 bytes] 0x0002     in this case
	   0004	 total length	 [4 bytes] 0x0029ea   in this case
	     repeating
	   0008	 i_id		 [8 bytes] 0x008310   in this case
	   0010	 i_id		 [8 bytes] 0x00831c   in this case

[FIXME: source]			  2015-03-09			OUTLOOK.PST(5)
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