Hello.
Did anyone of you experts know how to remove this menu? I tryed edit some .dll's but with no luck. Mayby someone know in which .dll is this menu. I didn't find anything on google so I suppose this is imposible, but I want to be sure My os is WinXP.

I finally found a way to do this. The explorer menus are in browselc.dll file. So I edited this file in XN Resource Editor and by this method I get rid of this menu. But I really didn't knew I gona do this by myself

You just want to remove access to help and support? That can be done through group policy, and you may want to disable the help and support service as well.