Putting the pdx in Disk/Games should be enough, registering the simulator shouldn't be necessary. If it's not showing up after a reload.. I'm not sure how the launcher is even loading? 
What platform are you running on?
Putting the pdx in Disk/Games should be enough, registering the simulator shouldn't be necessary. If it's not showing up after a reload.. I'm not sure how the launcher is even loading?
What platform are you running on?