http://windower.net/ - get the latest version here
http://forums.windower.net/ - check into bugs and/or report new ones here
It's not unheard of for seemingly mundane tasks to cause Windower to crash, a few updates ago getting Sanction while using it caused the game to freeze.
All in all you'll be better off asking in the Windower forums where the devs live as opposed to here, where the trolls live. :P