When installing IBM WebSphere Application Server for z/OS, you can install the embedded messaging feature for use as the Java Message Service (JMS) provider, which is also frequently called the integral JMS provider. The integral JMS provider is installed using the Customization Dialog.
Installing the embedded messaging server feature if WebSphere MQ Version 5.3 is already installed
You have a choice if you already have WebSphere MQ Version 5.3 installed:
To use WebSphere MQ Version 5.3 as the JMS provider, install the IBM WebSphere Application Server product with only the embedded messaging client feature. Installing and using the WebSphere Application Server embedded messaging client feature is recommended with either the server feature or the full WebSphere MQ Version 5.3 product.
WebSphere Application Server messaging applications can use the WebSphere MQ Version 5.3 product as the JMS provider. Using the client feature, however, requires that you install the WebSphere MQ Version 5.3 Java messaging feature.
To install the embedded messaging server feature when WebSphere MQ Version 5.3 is already installed, upgrade WebSphere MQ Version 5.3:
If you install WebSphere MQ Version 5.3 without the required features, the installation of either IBM WebSphere Application Server embedded messaging feature is unsuccessful because of prerequisite check errors.
Avoiding a coexistence problem between embedded messaging, IBM WebSphere Studio Application Developer Integration Edition, and IBM WebSphere Application Server
The IBM WebSphere Studio Application Developer Integration Edition and IBM WebSphere Application Server both include an option to install embedded messaging. The embedded messaging option in these two products is incompatible.
To avoid this problem, do not install embedded messaging for both products on the same machine.
For current information available from IBM Support on known problems and their resolution, see this customized IBM Support page .
IBM Support has documents that can save you time gathering information needed to resolve this problem. Before opening a PMR, see this customized IBM Support page .