I'm looking for a small and cheap (very) application that will let the user design a simple form to capture data to XML. The XML is very simple and will be overwritten with every capture, i.e. not written in a record in an XML 'database'. I can do it myself too easily with Winforms but my friend is looking for a definite desktop, not online, application to generate the forms, and Visual Studio is just too expensive.
You can try Altova Authentic. They even have a community (free) version.