While this option can be specified from the command line, its value will be ignored when UEM Server executes the script.

When UEM Server executes an event handler with a HANDLER_TYPE of script, it writes the statements contained in the Handler Actions field of the handler record to a temporary file. The USER_SCRIPT_TYPE type value is used as that file's extension.
 
On the target system, a file association between type and an application responsible for opening files with that extension must be defined. While this association is not required, when the event handler record is added with UEMLoad, it must be defined prior to any attempt by UEM Server to execute the handler. Otherwise, execution of the script will fail.