You need to create a text file that contains options for the underlying JVM. The location of this can be specified either by a registry entry, or as an environment variable. The registry key takes precedence over the environment variable.
The registry key is HKEY_LOCAL_MACHONE\SOFTWARE\IBM\MQe\CurrentVersion\Bindings with a String value of OptionsFile.
The environment variable is MQE_VM_OPTIONS_LOCN. This variable points to the location of a text file that contains the options for the underlying JVM and it must be set.
In general, the JVM options can be specified on the Java command line, for example to set the classpath:
java -Djava.class.path=e:\myclasspath myClassToRun
The configuration file uses the same style to pass configuration options. Multiple options can be given to the JVM, and the configuration file should contain such options, one on each line. The following is an example configuration file:
#Example configuration file -Djava.class.path=e:\MQe;e:\MyApplicationClasses -Djava.compiler=NONE