I have setup the default.rdp file so that when a user uses it to log into our terminal server a particular application opens, and when they close the application, it also logs them off of the terminal server. This setup is ideal except that it prevents other applications which are available through the primary application, such as email, from opening interactively. What changes do I need to make in order to allow other applications to open interactively when called from the primary application, while still maintaining the "hidden desktop" setup I have now?