Joined Feb 2006
Status: Geometric Trader
You can't do it but I use something that I believe it is better.
VirtuaWin is a free application that creates multiple virtual desktops. The nice thing about virtual desktops is that you can't see what's open on the other one. So my main desktop is the usual one (surfing, mail, movies, etc) and there is also another desktop dedicated to trading solely where I have MT and Oanda always running.
So when I leave my comp I switch to main desktop. Switching between the 2 desktops can be done with a key combination only, thus nobody who comes to my comp knows that I run 2 desktops in fact :.
Hope this helps, just give it a try, if your taskbar is cluttered you'll love it.