Kiriakos,
Thanks! This version of the switcher works great for me. I can play The Simpsons from a folder with 3319a, and 3:10 to Yuma from an ISO file with 3730. With the first version of the switcher, The Simpsons did not playback smoothly.
I have a small idea for your next version. You could also swap the desktop icon for PowerDVD to show if the current version is 3319a or 3730. If I have a chance, I might even do this myself with your batch version of the switcher.
Here you are m8: Get this new version of the .exe type of the switcher. There are 3 files in the zip, the pdvdswitcher.exe and a couple of ''dummy'' .exe files just to carry the two different icons that i made. Extract them in the usual dir (c:\program files\cyberlink ) and have fun.