CVar gxMaximize

This cvar is ignored by the game engine unless gxWindow is set to 1 - meaning when Wow is set to Windowed mode.
This cvar maximizes your game window (sort of like Full Screen mode). Most use this cvar so that they can multi-task and alt-tab faster to other programs.
Possible settings for this cvar:
 0 - Default - Disabled
 1 - Enables maximized windowed mode
gxMaximize