PACT WinControl lets you use a shortcut to set the exact size and position of a window.

WinControl lets you set the exact dimensions and position of any windows on the screen. You can also create a shortcut that always opens the application at that size and position. WinBzzzz is useful for controlling applications that don't remember their size and position, or for testing the way a Web page displays at 640x480 or 800x600 resolution.