Starting with this release of web agents, you can install different types of agents on the same machine. Prior to this release, you could not install web agents from different product groups on the same machine. For example, previously, an agent instance for Apache HTTP Server and an agent instance for Sun Java System Web Server 6.1 could not be installed on the same machine. Now, they can.
Benefit - Support for Heterogeneous Agent Types on Same Machine: The benefit of this feature is that a deployment that has agents in a multi-server scenario requires fewer hardware sources.