An attempt to load the message data set MVPMSGS was unsuccessful.
The system terminates the task.
Tell the system programmer about the error.
Check that the identified module resides in a library that is accessible to the MVS™ platform code. See z/OS Communications Server: IP Configuration Reference for information about required library residence for TCPIP components. If residency requirements are met, gather all available documentation, and report the error to the IBM® Software Support Center.
MVPMAIN
mainline code