Hi Xaoc,
this forum is for software developers who are using the Open Protocol Specification documentation to assist them in developing systems, services, and applications that are interoperable with Windows. The Open Protocol Specifications can be found at: http://msdn2.microsoft.com/en-us/library/cc203350.aspx. Since your post does not appear to be related to the Open Protocol Specification documentation set we would appreciate it if you could try .Net Developer Forums | Common Language Runtime (http://social.msdn.microsoft.com/Forums/en-US/clr/threads) instead to find the information you are looking for. Thanks!
Best regards,
Tom Jebo
Microsoft Protocols Support Team
Regards,
Tom Jebo
Senior Support Escalation Engineer
Microsoft DS Protocol Team