Yes, I know you mean that. For most drivers the method I mentioned in my first reply works. For some of them unfortunately not... If you want to have always application A with driver A, you'll have to make it yourself. For soundcards you can try my sounddriverpack, see my sig. For other drivers there are several methods, or invent your own! Possibilities: 1. batch files like this: if exist %systemroot%\system32\drivername.SYS start \wait driverapp.exe /switch 2. edit the driver's inf file: check the modifications.htm file in my driverpack...