Still now working Ctrl, Alt or Shift. I don't think, that this is because of german OS! Have deactivated all Protection-Software. Do i have to do any setup to get this to work or will this work with basic setup?

Just one question to Mouseclick support. Means that, if i click on position 100,100 (x,y) on master WoW Window this click will be done simulated on the same positions at the client windows?