Illegal Removable Disk Specification.

Occurs on:  68, 86, and 286.

Meaning:  This error is displayed on the file server console when
          attempting to DISMOUNT a drive that is not defined as a
          removable volume in the server.  This is not a fatal error and
          will not affect the operation of the file server.

Solution:  Attempt to only DISMOUNT volumes that are specified as
           removable volumes in the system.