Shoot... The problem is solved.
Actually the message "Obj ref to a null instance" is thrown by our application. That means the impersonation is a huge success,yet I mistook it with IIS message.
Anyway, thank you guys very much for help me to troubleshoot my IIS server, and introduce the very useful tools and tips
Actually the message "Obj ref to a null instance" is thrown by our application. That means the impersonation is a huge success,yet I mistook it with IIS message.
Anyway, thank you guys very much for help me to troubleshoot my IIS server, and introduce the very useful tools and tips