Hi
In my application it uses
<authentication mode="Windows" />
<identity impersonate="true" userName="administrator" password="giserver12"/><authentication mode="Windows" />
<identity impersonate="true" />
Also using IBM MQ DLL , which picks the application name as w3wp.exe and Current user as "logged in user" or the user who runs the asp.net work process
when we resert IIS and "USER A " run the application - MQ message sent as USER A
then USER B run the application - message sent as USER A
Go to the complete details ...