MSMail aka Workgroup Post Office (WGPO) is not supported on Outlook 2007 (or on Outlook 2002 and 2003). MSMail is well beyond it's prime and if you are upgrading to the latest and greatest Office software, you need to seriously consider upgrading your backend email software as well. ]
MSMail can be made to work in an unsupported mode. This means if there are problems, don't bother calling Microsoft support for assistance, they won't help you.
Note: I have not yet tested this, but others tell me it works as well as it does in Outlook 2003.
If you want to install MSMail, do the following:
1. MSFS=Microsoft Mail
to the [Services] section of
C:Program FilesCommon FilesSystemMSMAPI1033mapisvc.inf
2. Add this to the end of mapisvc.inf (watch for broken lines – each line begins with PR_, except the last 3):
PR_DISPLAY_NAME=Microsoft Mail Address Book
PR_PROVIDER_DISPLAY=Microsoft Mail Address Book
PR_DISPLAY_NAME=Microsoft Mail Shared Folders
PR_PROVIDER_DISPLAY=Microsoft Mail Shared Folders
PR_DISPLAY_NAME=Microsoft Mail Transport
PR_PROVIDER_DISPLAY=Microsoft Mail Transport
Providers=SFS_AB, SFS_MS, SFS_XP
3. Add MSFS32.DLL to
You will also need two ecf's, MSFSMENU.ECF and MSFSPROP.ECF placed in C:\Program Files\Microsoft Office\OFFICE12\ADDINS
if you need the post office files, use the installer for Outlook 2002 and only install the Post office files.
Restart Outlook and possibly the computer.
If the MSMail address book returns an object not found error when resolving addresses against it, you can work around this one of two ways.
- By adding the other members of your post office to your contacts folder. Replying to mail works fine as do addresses in the autocomplete cache – you just can't use the MS Mail address book to resolve addresses.
- Create a new *.pst using Outlook 97/2002 format. Using the new Unicode format appears to cause the error.
To easily add the contents of the address book to your Contacts folder, open the Address book to the Post Office address book. Select all names and right click, then choose Add to Contacts. You can now send mail to your MSMail address list.
To make a new pst, open the profile dialog (from Outlook use Tools, E-mail Accounts, View or change existing email accounts or access it from Control Panel, Mail). Select New Outlook Data file at the bottom of the screen and create a new one using Outlook97/2002 format, then set it as the default delivery location. You'll need to restart Outlook for the change to take effect.
You may need to restart Outlook to see mail in newly created shared folders.
Published January 2, 2011. Last updated on April 29, 2018.