[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

[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


"Peter Kirk" <pk@alpha-solutions.dk> wrote in message
news:eQYQAxIeFHA.3352@TK2MSFTNGP09.phx.gbl...
> 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%3D2057&query=rundll32

--

Will Denny
MS-MVP Windows Shell/User
Please reply to the News Groups


"Peter Kirk" <pk@alpha-solutions.dk> wrote in message
news:eQYQAxIeFHA.3352@TK2MSFTNGP09.phx.gbl...
> 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
>