Hi, this is windows scripting host and has no place in changing your homepage unfortunately you have been hijacked part of a trojan I know the security forum is busy and I know how to fix these problems (being doing it for years) however forum rules dictate that you pop over there (the trick here is to prevent this from ever happening) Follow the instructions your Hijack this log will show :-
R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Start Page =
http://www.redtube.com/..... and most likely:-
R1 - HKCU\Software\Microsoft\Internet Explorer\Main,Window Title = Long Live Sowar!!!
Do not attempt your own fix have an expert walk you through it ..patience may be required.