problème tr rapide QuickSort dans une listbox1

Private Sub UserForm_Activate()
Dim Tb, Ii, Ij
'Dim TabListBox As Variant
Dim lib() As String
Dim i, j, k, l As Byte
Dim temp As String
Set f = Sheets("t_client")
a = f.Range("a2:c" & f.[A65000].End(xlUp).Row)
Dim b(), c()
j = 0
Me.ListBox1.ColumnCount = 2
Me.ListBox1.ColumnWidths = "45;100"
        For i = LBound(a) To UBound(a)
            If a(i, 1) = "Oui" Then
                j = j + 1
                ReDim Preserve b(1 To 2, 1 To j)
                b(1, j) = a(i, 2)
                b(2, j) = a(i, 3)
            End If
        Next i
        c = Application.Transpose(b)
        Call Tri(c(), 1, LBound(c, 1), UBound(c, 1))
        Me.ListBox1.list = c
End Sub

Sub Tri(a(), ColTri, gauc, droi) ' Quick sort
  ref = a((gauc + droi) \ 2, ColTri)
  g = gauc: d = droi
  Do
    Do While a(g, ColTri) < ref: g = g + 1: Loop
    Do While ref < a(d, ColTri): d = d - 1: Loop
    If g <= d Then
       For k = LBound(a, 2) To UBound(a, 2)
         temp = a(g, k): a(g, k) = a(d, k): a(d, k) = temp
       Next k
       g = g + 1: d = d - 1
    End If
  Loop While g <= d
  If g < droi Then Call Tri(a, ColTri, g, droi)
  If gauc < d Then Call Tri(a, ColTri, gauc, d)
End Sub

Private Sub CommandTriNom_Click()
  Dim a()
  a = Me.ListBox1.list
  Call Tri(a(), 1, LBound(a, 1), UBound(a, 1))
  Me.ListBox1.list = a
End Sub

Private Sub UserForm_Activate()
Dim a
Dim temp As String
Dim f As Worksheet
.
.
.

 'Le chargement du tri initial est à remplacer la zone libellé est en (2)
Call Tri(c(), 1, LBound(c, 2), UBound(c, 2))

Sub Tri(a(), ColTri, gauc, droi) ' Quick sort
  Dim ref As String
  Dim g As Long
  Dim d As Long
  Dim k As Byte
  Dim temp As String