This only works for right handed mice since it uses MouseClick("left" which doesnt return the left mouse button configured under Windows but the default left button which is the right button for left handed users.
Any chance it can be changed to work properly for both left & right handed users please with "primary" or "main" instead of "left"?
[EDIT]
[Only registered and activated users can see links. Click Here To Register...] is a left handed version that is also slightly faster on the mouse clicks for any lefties.
No virustotal as I can't connect to their site. If anyone else can, please do so.