How to Reinstall Mapi32.Dll

1. Go to the free DLL download website and click "Download mapi32.dll."
2. Click "Save" in the confirmation pop-up, navigate to the location on your hard drive where you want to save the file and click "Save" to begin the download.
3. Right-click the saved DLL file and select "Copy." Go to the "Start" menu, click "Computer" or "My Computer," double-click the "C:" drive, double-click the "Windows" folder and then click the "System32" folder. Right-click anywhere in a blank space and select "Paste."
4. Go to the "Start" menu, type "run" in the "Start Search" box and hit "Enter." If you are using Windows XP, go to the "Start" menu and click "Run."Type the following command in the search field and hit "Enter" to register the DLL:Regsvr32 "C:\Windows\System32\mapi32.dll"Click "Yes" in the pop-up to confirm the registration.
5. Restart your computer.