Including an endpoint address on the end of the service (.svc) name works but causes a warning in VS2008. This may occur in other controls as well but I have only tested it with this control so far. The issue is also present in the ScriptManager control (not affiliated with this project)
Comments: This ticket was filed for a pre-15.1 version of AJAX Control Toolkit. If this is still an issue in v15.1 or later, please create a new inquiry.
Comments: This ticket was filed for a pre-15.1 version of AJAX Control Toolkit. If this is still an issue in v15.1 or later, please create a new inquiry.