Library /sys$common/syshlp/dbg$help.hlb DEBUG, Messages, NOEXITRUN  *Conan The Librarian (sorry for the slow response - running on an old VAX)

 cannot exit running process !UL-you must STOP it first

    Facility: DEBUG, VMS Debugger

    Explanation: The debugger cannot exit from the indicated process
    because it is running. In order exit the process, it must first
    be stopped.

    User Action: Use the STOP command to exit the process.