Pyrrho is a compact and efficient relational database management system for the .NET framework. It supports many features found in SQL2003 including advanced OLAP functions, and includes an implementation of the SPARQL protocol. The database engine has a 640KB footprint, so is an ideal choice for embedded database applications. Despite its small size it is scalable and efficient. It has been tested on high-volume scenarios, where it significantly outperforms existing commercial products. For further details see www.pyrrhodb.com