VMS Help TCPIP Services, Programming Interfaces, RPC Portmapper Routines, pmap_unset  *Conan The Librarian (sorry for the slow response - running on an old VAX)

    Called by the server procedure to have the Portmapper delete a
    mapping of the procedure's program and version number.
    Format
      #include  <rpc/pmap_clnt.h>
      bool_t  pmap_unset(u_long prognum, u_long versnum);

  Additional Information (explode) :

• Arguments
• Description
• Return Values