avast tells me that mtwirl32.dll is a virus, but avast is not able to delete or move this file.
Does somebody know what is mtwirl32.dll???
It’s a simple trojan …
Try running TrendMicro Housecall to remove…
http://housecall.trendmicro.com/
Also, Norton has documentation and removal instructions…
http://securityresponse.symantec.com/avcenter/venc/data/trojan.bookmarker.c.html