Uwe Kirst wrote: > > I'm getting a BSOD on unloading my wave RT driver, > please help, What this shows is that something tried to call back into portcls.sys after it had been unloaded. Are you shutting off and disconnecting your device's interrupt before you shut down? Have you deleted any queued up timer or DPC calls? Those are the most common causes of crashes like this. -- Tim Roberts, timr@xxxxxxxxx Providenza & Boekelheide, Inc. ****************** 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/