Hello Dennis, > if i find a way to get the Process OR processId then i can map this > process OR processId to SessionID. For example, you could obtain a pointer to PsGetCurrentProcessId, using MmGetSystemRoutineAddress. Then call PsGetCurrentProcessId at every request from higher layers (Port driver and/or IOCTLs). In most cases, you will get either 0 (a DPC-level call) or 4 (a system process). But sometimes you can get a valid user-mode process ID. 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/
