function CheckRAS: boolean;
const
  MaxEntries = 100;
var
  BufSize    : Integer;
  NumEntries : Integer;
  Entries    : array [1..MaxEntries] of TRasConn;
begin
  Entries[1].dwSize := SizeOf(TRasConn);
  Bufsize:=SizeOf(TRasConn)*MaxEntries;
  FillChar(Stat, Sizeof(TRasConnStatus), 0);
  RasEnumConnections(@Entries[1], BufSize, NumEntries);
  if numentries > 0 then
    result := true
  else
    result := false;
end;