Document Toolkit is a product of First Floor Software and provides a fast and feature-rich XPS document viewer library for Silverlight. The XML Paper Specification (XPS) is a fixed document format similar to PDF. In order to render Word documents in Silverlight, Document Toolkit requires the document to be converted to the XPS format first.
Aspose.Words for .NET is a document processing library by Aspose and provides document conversion to the XPS format. Aspose.Words supports all modern Word documents formats available today including Word 97-2003, Word 2007, WordML and OOXML. Conversion of OpenDocument (ODT), Rich Text Format (RTF) and HTML documents is supported as well.