During startup have u ever recieved messege: C:\Program Files\winad client\clientcom.dll. No, its not any file missing but this error is generated by WindowsXp shell. Actually clientcom.com is a part of winad.exe which is a spyware. Startup entry for winad.exe: WinAd winad.exe description: File winad.exe is a related to TwistedHumor company. It shows commercial advertisements . From time to time it connects to the Internet and downloads instructions and files. File winad.exe is related to adware WinAD. Files related to winad.exe: winad2.dll, WNAD.EXE, WNAD.DAT, WNAD-UPDATE.EXE File winad.exe removal: WARNING!!! File winad.exe is related to adware. This is serious violation of ur privacy, ur system is under security threat.