How to Delete MSI Dll

Windows 7 and Vista
1. Click 'Start' and type 'cmd' or 'command prompt' into the 'Search' box, then press 'Enter.' The Command Prompt opens.
2. Type 'regsvr32 /u msi.dll' into the Command Prompt and press 'Enter.'
3. Close the Command Prompt and restart your computer.
Windows XP
4. Click 'Start' and 'Run.' The Run tool opens.
5. Type 'cmd' into the 'Open Field' and click 'OK.' The Command Prompt opens.
6. Type 'regsvr32 /u msi.dll' into the Command Prompt and press 'Enter.'
7. Close the Command Prompt and restart your computer.