Forcing games to load on secondary monitor?

I was wondering if there is a way to force a game to load on my secondary monitor as my primary is a widescreen and some games just don't go to good on a widescreen.

Any help would be appreciated

In the display properties you can switch the secondary to be your primary monitor before starting to play a game.

Yeah I know but I was hoping there was some kind of command line or something so that when I click on the icon it would do it automatic, doing it the display property way can be messy depending what is on the desktop