the command command_name is not available Facility: DEBUG, VMS Debugger Explanation: The specified command, although available in some debug implementations, is not available in this one. One reason why is that the qualifier just doesn't make sense on the platform. For example, the /JSB qualifier on a STEP command doesn't make sense on Alpha VMS because there is no "JSB" instruction like there is on VAX VMS. User Action: Choose another command.