instlsp.exe is a Spyware.GuardMon. instlsp.exe monitors user Internet activity. Related files: %System%\gsp.dll %System%\GDSys\GDMgr.exe %System%\GDSys\GDH.dll %System%\GDSys\GDAdmin.exe %System%\GDSys\dXTList.dll %System%\GDSys\ExCalendar.dll %System%\GDSys\eztoolslib.dll %System%\GDSys\instlsp.exe %System%\GDSys\strace.dll %System%\GDSys\vbalFlBr6.dll Adds the value: "GDMgr.exe" = "%System%\GDSys\gdmgr.exe" to the Windows startup registry keys. More info: http://securityresponse.symantec.com/avc... Removal: Kill instlsp.exe process and remove instlsp.exe from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.