I was trying to free up some space on my Windows 7 machine and was directed to a utility called msizap.exe from Microsoft which removes orphaned msi's from the c:\windows\installer directory. My Installer directory is 12Gb on a 1 year old installation.
When I run "msizap.exe g" as an administrator it quickly returns the following. " Removing orphaned cached files No product/patch data was found "
Nothing seems to have been removed from installer.
Is it possible I have no orphan files or am I doing something wrong?