Found this on the forums, including info from a valued poster:

http://forums.worldofwarcraft.com/th...16923147&sid=1

It looks like it does click where the mouse is currently located, which can be a tough cookie, especially when you use maximizer and a mouse clone app like Synergy. I wonder if this could be used in conjunction with autohotkey to place the cursor in the center of the screen on keypress.... although again we start to wade through murky waters with regards to legitimacy.