WinTools.exe sounds like a program (or spyware) installed on your machine (NOT part of the normal windows install).
Check
this thread for some programs that you can use to get ride of spyware (I personally suggest AdAware).
WinTools may have an "Add/Remove Program" entry. Go to Start Menu->Control Panel->Add/Remove Programs and see if WinTools is in there. If it is, remove it!
Good luck.