I had to uninstall an application because it got corrupted. When I tried to reinstall it, I received an error message the install could not continue as a copy of the app was already installed. I opened RegEdit to see if an vestiges remained. After deleting well over 200 registry entries, most with the data of something like d?\app, I thought there had to be a better way. I have four drives on my PC, 2 real & 2 virtual None of the drive have any folders or files from the app on them them. What next? Reformat a 500GB HDD? I think not.
To hodsocks and DogSnake: Yes to both suggestions. I used to have a registry cleaner that looked for "orphans". It compared the hard drive folders to the registry. No folder/file, no entry in the registry.
msicuu2 is not an ActiveX control. If you are in a corporate environment, ask your local Help Desk. There may be policies in place that prevent you from installing or removing software, or alter how it must be done.