"I've had a lot of friends in NZ ask me about Alt-Tabbing, and it's possible to use the etmin program that's around for Wolfenstein ET to work for ETQW. However, there's this app here that I made, based on some etmin code I found.
That runs in the system tray and gives you Alt-Tab access in ETQW - well, almost. It uses Alt+Q instead of Alt+Tab, and you must be at a menu (limbo menu doesn't count) for it to work. It correctly changes the resolution so if you play at a resolution that's different to your desktop then you'll get the right one (only if you use Alt+Q to get back into the game though). I do plan on fixing the quirks, but only if the final game ships without Alt+Tab working.
I just thought I'd share here too as I'm sure there's lots of other people irritated by the lack of Alt+Tabbing."
~sonic-nz
Thnx to ~sonic-nz there is a way to "alt+tab" in the quakewars demo. You can download the file here.
A second tool to alt-tab is MinimizOr, you can download the file here.
Features
» You can change the Shortcut for minimizing.
» Automatics startup at windows.
» Automatic switches to the right game when minimizing.
» Support multiple games.
» Changes screen to desktop resolution when minimized.
» Cannot start when game is running.
» Cannot close when game is running.