In this step of the exe4j wizard, you can configure the preferred VM that exe4j will choose to invoke your application. This setting only influences the choice of the VM type after a JRE has been selected according to the search sequence. The search sequence for the JRE is specified in a different step.
Please note that it is not an error if the selected JVM is not present for the found JRE. exe4j will simply use another JVM to launch your application in that case.