The Event Stream Processor installation process creates and updates environment variables on your system.
The installer creates an environment variable—ESP_HOME—to represent the directory where you installed Event Stream Processor. Specifically, the value of ESP_HOME is:
%install_location%/ESP
Use this environment variable when referencing file paths relative to the Event Stream Processor installation directory.
The installer modifies the PATH environment variable by appending the following:
%install_location%/ESP/lib/jre/bin
For both internal and external adapters, the environment variable JAVA_HOME must be set to the JRE version 1.6.0_26, or a later version.