PowerDVD audio problem volume

I’m using PowerDVD 4.0. Please don’t bother advising me to upgrade unless the new version is free and does everything PowerDVD 4.0 does (including Step Forward, Step Backward, Capture Frame, AB Repeat, etc.).

PowerDVD has some annoying volume control behavior. When I’m running PowerDVD, the volume controls take over my entire system volume. So, for example, I can’t mute PowerDVD and play a song in Winamp because PowerDVD mutes my entire system…

Fucking annoying. Anyone know how to get around that?