Title says it all, is there any system utility capable of force uninstalling programs on Windows 9x due to the following
-Corrupted file(s) which won't allow uninstallation to continue
-Deleted folders which contained files required to uninstall a program
-Program is incompatible with Windows 9x and refuses to uninstall itself

Yes. They work best when installed before other programs so they can monitor all registry and file system modifications.

You can also delete the main app folder(s) and then run a system cleaner to remove shortcuts and registry references to the now-missing files.

CCleaner will allow you to run uninstallers or remove the entry from the list. When something won't uninstall normally I manually delete registry keys and program files and then use CCleaner to remove the entry from the installed programs list.