in the sense you ask.
Software writers are incredibly lazy nowadays. Instead of keeping their dll's and other files within the same program directory, (or folder), they plant them all over the place in Windows. The favorite location is the Windows/System32 folder, and if you have checked that folder on your computer recently you will see why it is so difficult to keep track of any changes, (I have 2475 objects in mine at the moment). The same with the registry, whilst software writers are keen to make entries in the registry to conform with Microsoft requirements, they are not so bothered about deleting them within their uninstall procedure.
Many applications will now include a folder in the Documents and Settings, either for your user name or for All Users, so the best way to keep a lid on this is to set a Restore Point before installing anything. That way, if you need to revert back you restore back to that point. Then you hunt down the Document and Settings folder, and the folder within Program Files, or wherever you installed the application, and delete those folders. I would forget about the System32 folder additions.
Some programmers will include a log of the installation process. You see this some times when during the install you see a "Details" option. that lists the files being extracted and installed. Usually such logs are held in the Application folder, in Program files, or wherever. So you could use that to track down the installed files, but beware, any files you track down in the System32 folder may well be shared files, (by other applications), and so deleting those may be risky.