Demonstrate use of xapian(C#)

We need a prototype application that demonstrates the use of xapian in .Net, see [login to view URL] and [login to view URL] The prototype program should either be written in C# or VB.Net The application should handle two user actions. The user should be able to index a rtf document and the user should be able to search in the indexed rtf document. It should be the extracted text of the rtf that is searched and not rtf codes, so somehow xapian must be able to understand the rtf format.