For i = 0 To 20
Winsock1.SendData "var"
Next

Sub Espera(Segundos As Single)
  Dim ComienzoSeg As Single
  Dim FinSeg As Single
  ComienzoSeg = Timer
  FinSeg = ComienzoSeg + Segundos
  Do While FinSeg > Timer
      DoEvents
      If ComienzoSeg > Timer Then
          FinSeg = FinSeg - 24 * 60 * 60
      End If
  Loop 
End Sub

' -------------------------------

For i = 0 To 15
Espera(1)
Winsock1.SendData "var"
Next