Hi Dan.

MsgBox Application.CountIf(Rng2, sStr) 0

Should have been:

MsgBox Application.CountIf(Rng2.Value, sStr) 0

Another possibility might be::

'=============
Public Sub Tester2()
Dim SH As Worksheet
Dim Rng As Range
Dim rCell As Range
Dim blFound As Boolean
Const sStr As String = "ABC"

Set SH = ActiveSheet
Set Rng = SH.Range("A1:A10")

For Each rCell In Rng.Cells
If InStr(1, rCell.Value, sStr, vbTextCompare) 0 Then
blFound = True
Exit For
End If
Next rCell

MsgBox Prompt:="The string " & Chr(34) & sStr _
& Chr(34) & " was found = " & blFound
End Sub
'<<=============

You could also use the Find method.


---
Regards,
Norman