My dear friends I have w32.sasser.worm..!! i have win2000 pro os. i install patch for this virus..!! and run norton removal tool ...!! and norton 2003 Pro with latest update..!! is scan with all antivirus...!! with latest update..!! but still problem of Lsass.exe application error..!! Errer is IS IT NEW virus other then sasser.worm..!@@ how can i remove this error...!!