Can anyone shed some light on the proper way to communicate with a GFX APO from a desktop app? I basically want to pass some parameters that control an audio DSP effect implemented in the APO from an application. I’ve pored through these archives/MSDN/Google/etc and the best I can come up with is maybe creating a custom property store in the registry to handle the communications. If anyone has any insight or specific examples it would be most appreciated… MSDN has been of very little help. ****************** WDMAUDIODEV addresses: Post message: mailto:wdmaudiodev@xxxxxxxxxxxxx Subscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=subscribe Unsubscribe: mailto:wdmaudiodev-request@xxxxxxxxxxxxx?subject=unsubscribe Moderator: mailto:wdmaudiodev-moderators@xxxxxxxxxxxxx URL to WDMAUDIODEV page: http://www.wdmaudiodev.com/