Play Warcraft in a Window

Introduction
Playing Warcraft in a window is very useful when you are doing other stuff while playing Warcraft or while writing strategies or something. Because it's very easy to minimize and you don't even have to minimize. It's also nice if you are chatting on MSN, AIM, YIM, IRC or any other IM.

Doing it
The way to do it is to make a shortcut to Warcraft III (you probably already have that)
Then rightclick on it and click on "Properties"
Then add -window after the "Target".
Mine looks like this:
Target: "D:\Games\Warcraft III\Frozen Throne.exe" -window