Ok,here are the lines you need to drop (just to save you looking)
InstallExecuteSequence / ErrorIncompatibleOSTypeShow / NOT (MsiNTProductType=1 AND VersionNT >=500)
InstallExecuteSequence / ErrorIncompatibleOSShow / VersionNT<500 Or Version9X
InstallUISequence / ErrorIncompatibleOSShow / VersionNT<500 Or Version9X
CustomAction / ErrorIncompatibleOSShow / 19 / This application could not be installed. Current operating system is not supported.
Now,I don’t know if me using the reg hack of denying myself permission has anything to do with it working also? I used this to install Avira,but it was the free edition so it was not that good.