This white paper summarizes the results of benchmark testing of Microsoft BizTalk Server 2006 and SQL Server 2005 running on Unisys ES7000/one Enterprise Servers. The testing achieved unprecedented throughput levels, with the Latency Application scenario reaching 1,156 orchestrations per second. This level of performance far surpassed any previously recorded by Microsoft for BizTalk Server. The results demonstrate the scalability of BizTalk Server on the ES7000 platform and that further optimizations could allow even higher performance.