Try BizTalk Server 2006 R2
Register to download BizTalk Server 2006 R2 and explore the many new features and enhancements, including extended EDI support, BAM Interceptors, the WCF Adapter, and RFID.
BizTalk Server 2006 R2 Installation Troubleshooting Knowledge Base Article
If you have pre-downloaded the redistributable CAB files that contain the dependency software that is required by BizTalk Server 2006 R2 and your setup or configuration fails unexpectedly, please read this Knowledge Base article that explains how to resolve the problem.
BizTalk Server 2006 R2 Adapters
BizTalk Server 2006 R2 provides a rich collection of adapters that enable your application to connect to a wide variety of systems. Adapters use various communication standards to exchange messages from different endpoints such as file systems or business applications.