I get a system can't find rundll32.exe, even thou it is on system1 person needs an answerI do too

I get a system can't find rundll32.exe, even thou it is on system Please perform following steps. Please click on Start/Run type "SFC /scan now" click on OK to open System File Checker. (Without quotes) Please inser Windows Installation CD (If it asks for CD) It will repair all corrupted and damaged files. Please reply, If you face any problem.K M JHA Technical Support Executive (INDIA)

Use Sysinternals Autoruns to find all references to rundll32.exe. Research each one and determine which setting is responsible for the behavior you experience. Or, selectively disable them one at a time to attempt to determine which entry is involved. Then, leave that one unchecked and re-check the other entries that reference rundll32.exe. You could also try using a clean boot technique to determine what autostart entry may be involved.