MFCMAPI provides access to MAPI stores to facilitate investigation of Exchange and Outlook issues and to provide developers with a sample for MAPI development.
Choose based on your Outlook installation (not your Windows version):
| Your Outlook | Download |
|---|---|
| 64-bit Outlook | MFCMAPI.exe.x64.zip |
| 32-bit Outlook | MFCMAPI.exe.x86.zip |
How to check your Outlook version:
- Open Outlook
- Click File → Office Account → About Outlook
- Look for "32-bit" or "64-bit" in the top line
Note: Most Microsoft 365 installations are 64-bit. If unsure, try the x64 version first.
For assistance using MFCMAPI, developing add-ins, or general MAPI development, consult the documentation. Find a bug? Need help? Have a suggestion? Report your issues through the issues tab.
Interested in contributing? See Contributing for build requirements and development setup.
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