Open the file 'rev.ini' in the game folder and locate this line:
ProcName=dow2.exe
and add -dev to the end, so it looks like this:
ProcName=dow2.exe -dev
Now when you start up the game, click multiplayer, and if 'Find Games' is grayed out, you're playing in dev mode.
[Edited by MrLard, 3/1/2009 3:00:27 AM]
how big is that rev.ini file? mine doesn't have it... would you be kind enough to post the contents here? (vitality release uses other .exe to launch it and -dev does nothing)