http://blogs.msdn.com/pkelcey/archive/2009/06/12/esb-toolkit-life-after-codeplex.aspxSo the ESB Toolkit is no longer going to be release through codeplex. So where do you register bugs and discuss issues? We have created a couple of new sites for this You can register bugs on the Connect site at https://connect.microsoft.com/site/sitehome.aspx?SiteID=886&wa=wsignin1.0en-USCommunityServer 2.1 SP1 (Build: 61025.2)