OSSMTP.dll is a mass-mailing worm W32.Israz@mm. OSSMTP.dll spreads via open network shares. Related files: %System%\vShell.exe %System%\OSSMTP.dll %Temp%\Fun.exe %Temp%\FAQ.exe %Temp%\Support.exe %Temp%\Q322593.exe More info: http://securityresponse.symantec.com/avc... Removal: Remove OSSMTP.dll from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.