rundll32.exe ->what the hell is it and why is it using 50% cpu?

bob4432

Lifer
Sep 6, 2003
11,727
46
91
help please....

is it normal to have rundll32.exe-257618f.pf and many other rundll32.exe-xxxxxx in the c:\windows\prefetch dir?
 

KB

Diamond Member
Nov 8, 1999
5,406
389
126
Rundll32.exe is a process that can call dynamic link library functions from the command line. It is used extensively in the windows control panel and is called during windows startup by a number of processes.

You need to find out when it goes to 50% (during boot, after running some software etc.) and find out what process is calling it. I have had older software cause this and had to uninstall it.

"is it normal to have rundll32.exe-257618f.pf and many other rundll32.exe-xxxxxx in the c:\windows\prefetch dir? "

I have them in prefetch too so I guess its normal.
 

bob4432

Lifer
Sep 6, 2003
11,727
46
91
Originally posted by: KB
Rundll32.exe is a process that can call dynamic link library functions from the command line. It is used extensively in the windows control panel and is called during windows startup by a number of processes.

You need to find out when it goes to 50% (during boot, after running some software etc.) and find out what process is calling it. I have had older software cause this and had to uninstall it.

"is it normal to have rundll32.exe-257618f.pf and many other rundll32.exe-xxxxxx in the c:\windows\prefetch dir? "

I have them in prefetch too so I guess its normal.

i noticed it because i launched ie and it hung for a couple of seconds. i hith ctrl-alt-delete and noticed it was at 50%. i am running a 2.8c / 1GB pc3200 / u320 scsi 10krpm hdd so i thought it was kind of weird because i usually never get a slow down when launching ie or even ps7. thanks for the info :)

 

Steve

Lifer
May 2, 2004
15,945
11
81
It doesn't seem normal to me. Check for spyware and adware, and run a virus scan.
 

bob4432

Lifer
Sep 6, 2003
11,727
46
91
Originally posted by: sm8000
It doesn't seem normal to me. Check for spyware and adware, and run a virus scan.


in the last 5 days i have run about 10 anti-virus with up-to-date norton and about 20 spyware checks with lavasoft se and spybot. i always get the vx2 spyware....

a couple of days ago i found the "java start page"
"java start page" virus/trojan but it was deleted.