Be warned,
I just tried this and now (After removing the space - & w) my game still plays only in windowed mode and I now have no auto scroll ability ingame. You then have to resort to the arrow keys to move around the city... Very annoying! If anyone can tell me how to reset it, besides reinstalling the game, it would be much appreciated. I also tried deleting the shortcut on my desktop and re-creating a new one and re-checked, the space - and w are no longer in the path but the game only opens in windowed mode now... I only hope it isn't true for all my other games as well now...
Alternatively, and really quite simple, all you have to do is hit Tab + Alt, or even Alt + Tab in just about any full screen game to drop it down, minimized, to do multiple things at once. When you are ready to go back ingame, you just click the game's program bar at the bottom of your screen and it pops back up to full screen. Again, if anyone knows how to undo this, it would be greatly appreciated. :-)
-Cheers