What could go wrong when cardspace UI is not popping up? You can see if you have card space UI working properly on your box by go to Control Panel->Windows CardSpace. The correct behavior is that your window will grey out, and a highlighted window...

This is a forum question, and here is a very sneaky way to do so. protected override bool CheckAccessCore( OperationContext operationContext) { string msgStr = operationContext.RequestContext.RequestMessage.ToString(); Message msg = Message...