csmsv.exe is a Trojan.Agent-XC. csmsv.exe spreads via open network shares. csmsv.exe tries to terminate antiviral programs installed on a user computer. Related files: %System%\csmsv.exe Adds the value: More info: http://www.sophos.com/virusinfo/analyses... Removal: Kill csmsv.exe process and remove csmsv.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.