How to get the full length Outlook EntryID?   

This simple function "almost" get's Outlook EntryID value for at mail item: 

--- 
Octenttohex(rs.Fields("http://schemas.microsoft.com/mapi/proptag/0x0FFF0102") 

Function Octenttohex(OctenArry As Variant) As String 
ReDim aOUt(Len(OctenArry) - 1) 
For i = 1 To Len(OctenArry) '+ 1 
If Len(Hex(AscB(MidB(OctenArry, i, 1)))) = 1 Then 
aOUt(i - 1) = "0" & Hex(AscB(MidB(OctenArry, i, 1))) 
Else 
aOUt(i - 1) = Hex(AscB(MidB(OctenArry, i, 1))) 
End If 
Next 
Octenttohex = Join(aOUt, "") 
End Function 
--- 

But - only the first half of the ID. 

As you will see from the example below I can come very close to combining 
EntryID and FolderID keys, only missing the last 8 characters ("57420000"): 

Outlook EntryID: 
00000000D04D936A971B9949B29C546E1BF88923070069265AC77A48AF4EAD3161FA67594F89000000005315000069265AC77A48AF4EAD3161FA67594F890000000057420000 

The retrieved EntryID from the MAPI property: 
00000000D04D936A971B9949B29C546E1BF88923070069265AC77A48AF4EAD3161FA67 

These strings are taken from the FolderID on the mail item, and piece by 
piece they match a portion of the EntryID: 
594F890000000053150000 
69265AC77A48AF4EAD3161FA67 
594F8900000000 

Folder ID på mailen: 
00000000D04D936A971B9949B29C546E1BF88923010069265AC77A48AF4EAD3161FA67594F890000000053150000 


As you can see, I can pick out different strings from the Folder ID and 
match them with pieces in the EntryID string - BUT not the last 8 characters. 

How can the exact EntryID be retrieved or calculated???

date: Wed, 26 Apr 2006 04:01:01 -0700   author:   Claus Lysholm

Re: How to get the full length Outlook EntryID?   

Try to use StoreID
As i know full EntryID is message entryID, folder EntryID and storage 
EntryID



"Claus Lysholm"  wrote in message 
news:87E1F204-0E31-4E38-8E14-21DEA48FDCDE@microsoft.com...
> This simple function "almost" get's Outlook EntryID value for at mail 
> item:
>
> --- 
> Octenttohex(rs.Fields("http://schemas.microsoft.com/mapi/proptag/0x0FFF0102")
>
> Function Octenttohex(OctenArry As Variant) As String
> ReDim aOUt(Len(OctenArry) - 1)
> For i = 1 To Len(OctenArry) '+ 1
> If Len(Hex(AscB(MidB(OctenArry, i, 1)))) = 1 Then
> aOUt(i - 1) = "0" & Hex(AscB(MidB(OctenArry, i, 1)))
> Else
> aOUt(i - 1) = Hex(AscB(MidB(OctenArry, i, 1)))
> End If
> Next
> Octenttohex = Join(aOUt, "")
> End Function
> --- 
>
> But - only the first half of the ID.
>
> As you will see from the example below I can come very close to combining
> EntryID and FolderID keys, only missing the last 8 characters 
> ("57420000"):
>
> Outlook EntryID:
> 00000000D04D936A971B9949B29C546E1BF88923070069265AC77A48AF4EAD3161FA67594F89000000005315000069265AC77A48AF4EAD3161FA67594F890000000057420000
>
> The retrieved EntryID from the MAPI property:
> 00000000D04D936A971B9949B29C546E1BF88923070069265AC77A48AF4EAD3161FA67
>
> These strings are taken from the FolderID on the mail item, and piece by
> piece they match a portion of the EntryID:
> 594F890000000053150000
> 69265AC77A48AF4EAD3161FA67
> 594F8900000000
>
> Folder ID pa mailen:
> 00000000D04D936A971B9949B29C546E1BF88923010069265AC77A48AF4EAD3161FA67594F890000000053150000
>
>
> As you can see, I can pick out different strings from the Folder ID and
> match them with pieces in the EntryID string - BUT not the last 8 
> characters.
>
> How can the exact EntryID be retrieved or calculated???

date: Thu, 27 Apr 2006 14:34:05 +0400   author:   news.microsoft.com