Lets get started...
1- go in Start -> Programs -> Accessories -> Accessibility, and then you'll see *Virtual keyboard*, open it...
2- Download WoWdupe (It isnt considered as a hack)
http://files.filefront.com/WoWDupeex.../fileinfo.html
Insert -start Home -stop
3- Open your WoW and turn in windowed mod
4- Now put your virtual keyboard in front of WoW, so WoW will be in background
5- start the wowdupe on *space* or *w* or any button you want!
Enjoy and have fun
BTW: Already tested and it works great!