CopyLock is a small program that allows replacing, moving, renaming or deleting one or many files or folders which are currently in use (e.g. Système files like comctl32.dll, or virus/trojan files.)
Add the files to update, click Apply, restart and that's it!
You can also list and edit the pending operations from the Système after you ran an installer or view the processes which use the locked files.
Disclaimer: you can crash your Système or make it unbootable if you are not careful, use at your own risk.