Outlook can resolve this conflict without affecting the program that originally caused the problem. The error message asks you to click either Yes or No . Yes , the Fixmapi.exe utility starts and attempts to fix the MAPI file conflict by installing the correct version. If a currently running program is using the Mapi32.dll file, the Fixmapi utility may not fix the file conflict.
Outlook needs to modify a system component that another program is currently using.
To fix this problem, please restart Windows. If you click OK , Windows does not restart. However, an entry for the Fixmapi utility is placed in the RunOnce registry key. When you restart Windows, the Fixmapi utility attempts to correct the Mapi32.dll file conflict. No , there is no change made to the core MAPI file.