1) "Across all ThreatExpert reports, the file "mscalc.exe" has sometimes been a threat." Source and further information: http://www.threatexpert.com/files/mscalc.exe.html 2) "Filename: mscalc.exe Related to: W32.SillyFDC Removal Procedure: Ending the process mscalc.exe will not help in getting rid of the infections. Antivirus and Anti-Spyware Software are recommended for automatic removal." Source and further information: http://www.precisesecurity.com/files-process/2007/05/31/mscalcexe/ 3) "I use HIJACKTHIS to remove errant startup items like these." Source and further information: http://forums.cnet.com/5208-6142_102-0.html?forumID=5&threadID=296848&messageID=2785763 " HijackThis is used primarily for diagnosis of spyware, as blind use of its removal facilities can cause significant software damage to a computer" Source and further information: http://en.wikipedia.org/wiki/Hijackthis "W32.SillyFDC is a generic detection that detects variants of the W32.Silly family of worms that spread by copying itself to removable media and may download other malicious applications." Further information: http://209.85.135.104/search?q=cache:NxtwvasHcMcJ:imamwardany.com/virus-local-jembatan-kahayan-palma-amburadul-dll/+"windows+cannot+find"+"mscalc.exe"&hl=en&ct=clnk&cd=2