{
{   This procedure determines if there are any member volumes on the set.  The
{ set must have previously been located in the active set table.
{
{         STP$MEMBERS_ON_SET (AST_INDEX, MEMBERS_ON_SET)
{
{ AST_INDEX: (input) This parameter specifies the index into  the  active  set
{       table for the desired set.
{
{ MEMBERS_ON_SET: (output) This parameter specifies whether there are known to
{       be any member volumes on this set.  This is determined by checking the
{       member  entry list in the active set table.  If the master is inactive
{       and this parameter is returned as FALSE, there may actually be members
{       on the set (they are inactive).  This is a fairly obscure case.
{
