Microsoft BizTalk Server Performance Optimization Guide

From MSDN: Welcome to the first edition of the Microsoft® BizTalk® Server Performance Optimizations Guide. We created this guide to provide in depth information for optimizing the performance of a BizTalk Server solution. Full end-to-end performance testing is frequently overlooked during enterprise application deployment. Knowing that Microsoft has built a scalable messaging infrastructure, many organizations that use BizTalk Server spend little or no time conducting performance testing of their own applications.