Microsoft has posted a Community Technology Preview release of Enterprise Library 3.0 technology, featuring application blocks to assist developers with common enterprise development challenges.Application blocks provide source code-based guidance for use in enterprise development projects. The code can be used as is, extended or modified. Featured in the CTP is a partial implementation of Validation Application Block and Application Block Software Factory technologies as well as a Visual Studio-integrated configuration tool. DAAB (Data Access Application Block) enhancements and a source code installer also are included. Release notes can be found here. Software Development