Windows XP: error Windows Installer Cant Be Accessed

My friend's laptop with Windows XP can not install the program, its error message "Windows Installer service can not be accessed blah blah". Several ways have been tried, including:

-Turn service: in the Start> Run: net start msiserver press OK, fixed the same error appears.
-Enable Windows Installer service manually: Start> Control Panel> Performance and Maintenance> Administrative Tools> Services, appeared "specified path cannot be accessed blah blah". Checked the service properties, the paths leading to a temporary folder.

To change the path Start > Run type regedit > OK. Find HKEY_LOCAL_MACHINE\CurrentControlSet\Services\MSIServer right click on ImagePath > Modify insert: C:\WINDOWS\system32\msiexec.exe /V

ImagePath entry point to wrong path.

ImagePath has been corrected.

Entry registry after editing, close.

Windows Installer service fix

Got it, now Windows XP can install the program again.