Hello! Does somebody know KS Studio version that does not terminate on "Stress filter" operation? I tested three KSS versions: 1.0.0.1 from 2k3 DDK, 6.1.7600.16384 from WDK 7.1 and 6.3.9600.16384 from WDK 8.1, under Win7 SP1 x86/x64 and Win8.1 x64. All of them terminate abnormally in 1-2 seconds, with "Access denied" (c0000005), regardless of filter tested. Tried to run with Microsoft HD Audio topology/wave filters, Realtek HD Audio topology/wave filters, my virtual topology/wave filters etc. No success at all. Regards, Eugene ****************** 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/