eXtremeDB is an embedded in-memory database system (IMDS) created primarily for intelligent devices and embedded systems, though it can also be used within eXtremeDB features an intuitive, self-diagnostic programming interface, transactions measured in microseconds, and a footprint approximately 100K. eXtremeDB supports simple and complex data: structures, nested structures, arrays, vectors, BLOB, and optional fields. This evaluation copy is the XML-enabled version.