I am in the process of designing a .net windows forms application that uses metadata to drive the UI. Apart from finding http://msdn.microsoft.com/en-us/library/ms954610.aspx, I
You may try this with HTA. Sometime back I created a metadata driven application using HTA and XML. I created XAML like structure and HTA-VBScript code to parse this structure and render diffent types of UI elements along with validations.