Jeff Pages wrote: > > Hi Dan, > > I had the same problem. Check your DataRangeIntersection handler and > make sure it's not rejecting PKSDATARANGE_AUDIO requests with > MaximumBitsPerSample set to 24. Although the WDK documentation (under > "PCM High Bitdepth Stream Data Range") says that MaximumBitsPerSample is > set to the container size (in this case 32 bits), Vista doesn't. Really? Yeek. That's just awful! This could easily explain why my old drivers won't load on vista. Or one of the reasons. I've been too lazy to set up the entire development environment again, but now I guess I have to. tom -- It's easer to fight for your principles than to live up to them. ****************** 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/