Microsoft Corp will tap Mystic River Software Inc for more of its ISV experience and the Cambridge, Massachusetts-based is to license the Microsoft Repository to third-party ISVs who want to enable their programming tools to work with the Repository. Mystic already licenses VBA Visual Basic for Applications 5.0 scripting tools for ISVs. Mystic has licensed the Repository to Baker Hill Corp, Computervision Corp, Intellution, Professional Help Desk, Rational Software Corp, and Riverton Software Corp. The Repository is a database that stores and shares software components along with their descriptive information. It creates and manages the relationships between the items it contains and stores information on reuse, tool interoperability, team development, data resource management, and dependency tracking.