Rundll32.exe is an important process of your Windows system. If rundll32.exe is corrupt or missing, your PC will become instable and freeze often. If you are experiencing a rundll32 error you know what I mean by instable. It's just impossible to work with the PC efficiently that way.
Hence, you need to fix rundll32.exe right away. There are several way how you can fix rundll32.exe.
The easiest way is to download a Windows system repair tool and let it scan, analyze, and fix your system. You'll be surprised how quickly this happens. It only takes a few minutes. You can download a free system repair tool at http://www.SpeedUpMyPC.Info.
Best of all, this tool will not only fix rundll32.exe: it will also speed up your PC significantly. This tool repairs your registry, removes invalid program shortcuts and duplicate files, organizes your startup programs, resolves Windows installer errors, stabilizes scripting errors, and prevents PC crashing and system freezes.
Should you decide to fix rundll32.exe manually, I recommend reading this article first:
http://ezinearticles.com/?How-to-Fix-Rundll32.exe?&id=913723
In this article you will learn where you might easily locate a copy of rundll32.exe on your system. If there is none, you can still use a system repair tool to fix rundll32.exe.