msshell.dll is a Trojan.Vipgsm-AB. msshell.dll monitors user Internet activity and private information. It sends stolen data to a hacker site. Related files: %System%\msgina32.exe %System%\itstore.dll %System%\msshell.dll More info: http://www.sophos.com/virusinfo/analyses... Removal: Remove msshell.dll from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.