Does anyone know if an application can enumerate pin instances on a filter ? If so, did I miss it when I searched the DDK help and the WDMAudioDev archives ? Or, is it top-secret ? I am trying to send IOCTL_KS_PROPERTY requests to volume nodes associated with a pin instance (i.e. so called pin-nodes) on a filter. I have been successful sending such requests to nodes that are global to the filter. (i.e. so called filter-nodes). Art Edwards Art's <http://members.localnet.com/~snowdog0/Resume>resume. Art's <http://www.soniqboom.net>band (a.k.a. Soniq Boom). ****************** 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.de/