Library /sys$common/syshlp/dbg$uihelp.hlb DEBUGUI, conn_dialog_test  *Conan The Librarian (sorry for the slow response - running on an old VAX)

  Click Test to test the connection between the debug client and the
  debug server.  If the connection is operating correctly, the status
  "Server is Listening" appears in the lower portion of the Connection
  dialog box.