HOW TO REMOVE THIS PROBLEM WINDOWS CANNOT OPEN THIS FILE:rundll32.exe

HOW TO REMOVE THIS PROBLEM WINDOWS CANNOT OPEN THIS FILE:rundll32.exe this message shown when we click exe file

This is a virus named W32.Sircam .It will change EXE extension

If u have Win-XP please copy rundll32.exe file

1.Windows XP CD ROM disk in the CD ROM drive.
2.Click Start, and then click Run.
3.Type expand d:\i386\rundll32.ex_ c:\windows\system32\rundll32.exe in the Open box,. d=cdrive
4.Restart