Microsoft BizTalk Server 2010 Developer Edition

BizTalk Server 2010 Developer is a free edition of BizTalk Server that enables developers to build and test applications that run on BizTalk Server on both 32-bit and 64-bit platforms.

BizTalk Server 2010 Developer includes all of the functionality of Enterprise Edition, but is licensed only for development, test, and demo use. Solutions from BizTalk Server 2010 Developer Edition can easily be packaged and deployed to a production environment that is configured with any other edition of BizTalk Server 2010.