I have been have been having problems to remove any residual program footprints from an old install of Cyberlink DVD Suite. It was factory installed when I was running Vista 64bit Ultimate then upgraded to Windows 7 Ultimate. The main problems are removing Power2Go and PowerDirector from my system. I did a manual removal of files/folders then removed all registry entries and did a registry cleaning to make sure everything was removed. Thinking I have removed everything I one day wanted to reinstall it and was getting an Error 1628 after Cyberlink was trying to remove the previous installation of Power2Go and PowerDirector which I though it was removed when I did a manual deletion. Not sure if it has something to do with residual Windows Installer files in the system? Another error I received when trying to reinstall was " Error applying transforms verify that the specified transform paths are valid. C:\DVD\PDIR\1022.mst" I have been looking online but have not found anything to really help. I am not very versed with Windows Installer or Installshield but wondering if there is a way to force install the program over the previous without uninstalling the original install. I usually find answers online but this time have not, hope someone can help me!