I purchased this in hopes of it working for my full screen gaming not minimizing as they advertise and it didn't work with my games. They offer a 30 day guarantee on their website, but I can't get them to respond to my emails. I sent a refund request 7 days after I purchased it, because they didn't offer a trial version for "Actual Windows Manager" and no response, sent another email 5 days ago and still no response.