When you log onto FileMaker II again as a guest and then quit, your current
entry, and the original, will be removed, allowing the host to shut down.
However, until the guest logs on and quits, there are no options within the
program allowing the host to quit FileMaker II. Resetting the host's system, or
terminating the process with a debugger, if it is running MultiFinder, are poor
but effective alternatives.
For more information about this issue, contact Claris directly. Meanwhile, you
may want to investigate why the guest's system is crashing to minimize the
impact it has running FileMaker II.