http://blogs.msdn.com/drnick/archive/2006/08/30/Configuring-an-Operation-to-Impersonate.aspxToday's post is a supplement for those people annoyed that Using Impersonation with Transport Security doesn't actually explain how to use impersonation. Most of the questions that I've seen for this topic come from people that already know how WindowsenCommunityServer 2.1 SP1 (Build: 61025.2)http://blogs.msdn.com/drnick/archive/2006/08/30/Configuring-an-Operation-to-Impersonate.aspx#731958Wed, 30 Aug 2006 19:12:16 GMT91d46819-8472-40ad-a661-2c78acb4018c:731958Nicholas Allen's Indigo BlogThe CompositeDuplex channel is one of the two shape-changing channels that we’ve included in the product...http://blogs.msdn.com/drnick/archive/2006/08/30/Configuring-an-Operation-to-Impersonate.aspx#732742Thu, 31 Aug 2006 05:40:19 GMT91d46819-8472-40ad-a661-2c78acb4018c:732742Jason Haleyhttp://blogs.msdn.com/drnick/archive/2006/08/30/Configuring-an-Operation-to-Impersonate.aspx#1116776Tue, 21 Nov 2006 22:29:04 GMT91d46819-8472-40ad-a661-2c78acb4018c:1116776Nicholas Allen's Indigo Blog<p>I'm writing a middle-tier service that needs to act as the client. I can get the user name from the client</p>