Rundll32 - do I need it?

[Peter Kirk]

Hi

a few times a day the cpu usage on my windows XP pc shoots up to 100% and
stays there. I have to reboot.

Using "perfmon" I can see that a program called rundll32 is using 100%
processor time, and when I shutdown the pc quite often rundll32 hangs, and
won't close itself.

Are there known problems with rundll32? (To tell the truth I don't really
know that this program is the problem on my pc, but it does seem a
possibility). What could cause the problems - and how can I fix it?

Thanks,
Peter

 

[Will Denny]

Hi

Please have look at the following article:

"INFO: Windows Rundll and Rundll32 Interface"
http://support.microsoft.com/default.aspx?scid=kb;en-us;164787

Also here:

http://support.microsoft.com/search/default.aspx?catalog=LCID=2057&query=rundll32

 

[Jonybrv]

Yes, rundll32.exe is only of the important system file. You will often find
spyware/viruses disguising themselves as this file.

Run virus scan/spyware cleaner.
Ad-aware:
http://www.lavasoftusa.com/software/adaware/

Noron free online scan:

http://security.symantec.com/default.asp?productid=symhome&langid=ie&venid=sym