1. Open C:\Windows\system32\dllcache from the Run box (available through pressing Win + R on your keyboard).
2. Download Replacer.
3. Copy the file from dllcache that you want to replace to your desktop
4. Rename the file (for instance, to name a really common one, from SHELL32.DL_ to shell32.dll).
5. Open C:\Windows\system32 and locate the other file.
6. Drag it in and press Enter.
7. Drag in the new file and press Enter.
8. Reboot the PC.
MADHUSUDHAN (9036079037), January 2011