I have found this very helpful and just passing along http://mvolo.com/blogs/serverside/archive/2007/12/08/IIS-7.0-Breaking-Changes-ASP.NET-2.0-applications-Integrated-mode.aspx If you can contribute with a WCF sample in VB 2008 help us out with this post titled WCF Client & Service Sample: http://community.discountasp.net/default.aspx?f=33&m=22095
