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  Interrupt:   2Fh
 
  Title:       Multiplex Interrupt
 
  See also:    Terminate and Stay Resident
 
  Description:
 
     Allows multiple resident processes to communicate with other
     processes through a single interrupt. A caller initiates
     communication by invoking Int 2Fh with a unique identity number in
     AH. Each resident process receives the call through its Int 2Fh
     handler. A handler that does not recognize its identity number
     passes control to the previous handler until control reaches the
     intended recipient.
 
     Function     Description
 
     01h          Print Spooler
     06h          Resident ASSIGN command
     10h          Resident SHARE command
     B7h          Resident APPEND command
 
     Input                                Output
 
     AH = Identity number                 AL = 0FFh if input AL = 0
     AL = Function number                 Otherwise, depends on handler
                                    -♦-