{
{   The purpose  of  this  request  is to get the set management exclusive use
{ lock.  This lock is maintained as a  ring  1  static  variable.   This  lock
{ implies  (by  protocol)  that  the requestor can both read and write the set
{ management tables.  This routine will wait until the lock can be set.
{
{       STP$SET_EXCLUSIVE_ACCESS
{
