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DECwindows: VUE process stays around

The Question is:

When I start a windowed program, a process named
VUE$loginame_x is started, where x is a sequence number.
After I finish, I terminate in the normal way by selecting
EXIT under the FILE menu.  The window closes, but the process
VUE$loginame_x remains in memory.  It can be terminated
only by STOP/ID=Pid.  I must do this, else the next
windowed program will run erratically.  Why doesn't the
EXIT command remove the process?  How can I change things
to make it do so?

If this is in the FAQ, I'll eat my hat!

The Answer is:

    Because under OpenVMS process creation is expensive, VUE will attempt
    to re-use processes.  So when a VUE$ subprocess finishes what it is
    doing, it is sometimes kept around in case another command needs to be
    executed.