{
{   The purpose of this routine is to interface to device management to detach
{ a volume set table's device file.
{
{       STP$DETACH_VST (SFID, STATUS)
{
{ SFID: (input) This parameter specifies the system file  identifier  for  the
{       volume set table.
{
{ STATUS: (output) This parameter returns the request status.
{
{       CONDITIONS: ERRORS FROM DEVICE MANAGEMENT
{
{       IDENTIFIER: stc$set_management_id
{
