AdStatComm.dll is an adware program Adware.WinTaskAd. AdStatComm.dll downloads and displays advertisements. Related files: %ProgramFiles%\AdStatServ.exe %ProgramFiles%\AdStatKeep.exe %ProgramFiles%\AdStatComm.dll %ProgramFiles%\PrevAdComm.dll %ProgramFiles%\WinTaskAd.exe %ProgramFiles%\WinSched.exe %ProgramFiles%\WinProject.dll %Windir%\Temp\creditdan_WinTaskAdInstPack.exe Adds the value: "Windows TaskAd" = "[path to Adware.WinTaskAd]" "AdStatus Service" = "[path to Adware.WinTaskAd]" to the Windows startup registry keys. More info: http://securityresponse.symantec.com/avc... Removal: Remove AdStatComm.dll from Windows startup using antivirus (also check How To Remove section)Startup Optimizer.