How to fix the error MAPI32.DLL is corrupt or the wrong version you encounter while trying to start Outlook 2003
Follow the instructions to resolve the error “MAPI32.DLL is corrupt or the wrong version”:
Locate and then open the following folder on your computer:
“C:Program FilesCommon FilesSystemMsmapi1033”
Right-click the ‘MSMapi32.dll file’, and then click ‘Rename’.
Type “Msmapi32.old”, and then press ‘Enter’ to rename the file.
Start Outlook 2003.
If you cannot start Microsoft Office Outlook, it is because “MAPI32.DLL” is corrupt or the wrong version has been configured on your PC. To resolve this issue, you need to reinstall Outlook.