Short description of WHOS-IN Pro In Out Board 2009-06B: WHOS-IN Pro is an easy to use Windows in-out board program for businesses that need to keep track of who's in and who's out of the office. With WHOS-IN there is no more time wasted checking a wall-mounted Office Board to see if someone is In, Out, or at Lunch... all the information you need is presented on screen in an easy to read format.