Windows Messenger Aduio Tuning Wizard Problem

HI all,
I developed an AVStream based wdm driver for USB device. I facing problem
with the pin dispatch function “pinClose”, when i run Windows Messenger
Audio Tuning Wizard. The pinClose for the capture pin is coming 10Secs
after the pin state is transition to STOP state. This is only happening
with Windows Messenger Audio Tuning Wizard. The capture pin is streaming
RBG data.
I am not facing this problem with graph edit.
Is anybody knows why that delay is occuring between “pin state STOP” to
Is anybody knows how to enable debug messages for Windows Messenger??
Any pointers or information on this is highly appriciable.
Thanx in advance.

Rafi Maniyar
Tata Elxsi Limited.