Err…that might be a virus, but it might be other things.
References :

By thë grëät gäzöö on Jul 2, 2009

This program is part of Windows, and is used to run program code in DLL files as if they were within the actual program. However, many viruses also use this name or similar ones. This file is also commonly used by spyware to launch its own malicious code.

Note: The rundll32.exe file is located in the folder C:\Windows\System32. In other cases, rundll32.exe is a virus, spyware, trojan or worm!

Try a good registry cleaner like CCleaner or Live OneCare Cleanup Scan.
References :

By lucee on Jul 2, 2009

Rundll is a windows process that is used by programs to load and run their DLL files.

When you get a Rundll error, a program on your computer is not behaving properly. You need to identify which program it is in order to fix it.
References :

By Odwin Oddball on Jul 2, 2009

Hi,

Try this site for help in curing it :-

http://www.tuneupadvisor.com/rundll32-exe-error.aspx

Arnak
References :
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By Arnak on Jul 2, 2009

Hi,chastonn

There are 3 step to repair rundll32.exe error

If you got rundll32.exe error then there is a 94% chance that your computer has registry problems. To repair rundll32.exe error you need to follow the steps below:

* Step 1 - Download a Perfect Optimizer,install this error repair tool.
* Step 2 - Click the Repair All Button.It will scan you pc for Free.
* Step 3 - Then click the Repair All Button again and your done! It is very easy to repair rundll32.exe error.

Here are the url of Perfect Optimizer:http://www.nomoreerror.com/tidpp-rundll32.exe_error-zz0001
References :
http://www.nomoreerror.com/tidpp-rundll32.exe_error-zz0001

By Alice on Jul 2, 2009