The windows app rundll32.exe has been running constant in task manager for a couple days now. Memory usage ranges 48k - 6000k. Seems to affect performance of cpu taxing applications and games. Size of the file in my windows/system32 directory is 32kb. I read somewhere that the rundll32.exe should be smaller than this. Scanned comp for spyware/malware/virus and cleaned a few files. I think anitvirus skips over this file because its a windows exe. Although the rundll32 process still begins at startup and does not disappear. I'll force close it and have no problems running my system. Is there a way to replace this file safely?