Can anyone help me please!

I have been at this comp for 3 days now trying to resolve this rundll32.exe problem. I've followed instructions to download pc doctors etc, but when trying to run or install any download it won't allow me.

This has alot to do with rundll32.exe beeing removed. Like an dumb S**t I am, I deleted the above background process, thinking it was a virus.

So is there anyone out there who can help me?

Thanx for your time.

Lea