With disabled
 extra debug last line before exception is:
(drivers/ksfilter/ks/connectivity.c:270) ZwOpenKey() failed with status 0xc0000034
2011/11/19 Igor Paliychuk <mansonigor@gmail.com>
Debug log from testing cmake soundchip in KSStudio.

http://www.reactos.org/paste/index.php/9568/

Btw i'm getting crash in cmuda.sys on two different PCs (though i didn't notiv=ce if chips are the same)

To get your attention, Johannes ;)