EMS is JMS 1.1 compliant and will work with any JMS 1.1 software including IBM WAS. Although we do not test specifically against any commercial application servers, we will support any customers using EMS with any other JMS 1.1 compliant software. The document “tib_ems_integration_guide” describes the connectivity between IBM Websphere Application Server 6.1 with EMS 6.x, which should work with IBM WebsSphere Application Server 7.