Problem: I am having a small problem opening "windows setup"

Problem: I am having a small problem opening "windows setup" (control panel>add/remove programs>windows setup) When the window opens I get an error message saying, Rundll32 - An error has occurred in your program, to keep working anyway, click Ignore and save work in a new file. To quit this program click Close. You will lose information you entered since last save. The "Ignore" button does not work, when clicking "Close" I get another error message saying :
Rundll32 has caused an error in SetupX.DLL
Rundll32 will now close.
Rebooting doses not work.
Any ideas on how to fix this?
Possible Solution: Run this attachment! A registry cleaner is the cause of this.(VarLDID.reg)