Vista - VBScript RegEx vs ECMA 262

I had read that Microsoft VBScript Regular Expressions 5.5 conformed to
ECMA-262 with some exceptions in the replacement text.

In using VBA 6.5 (under Excel 2007), it appears that <nbsp> (Hex code A0) is
not included in the "white space" character class.

Is this another area of non-conformance with ECMA-262? Or is there something
wrong with my setup.

And yes, I am aware that the MS web site documentation indicates that \s is
equivalent to [ \f\n\r\t\v] which clearly does not include <nbsp> in that
class. But I just wanted to confirm that what others have written is in error
(or that I am doing something wrong).

Here is VBA code that demonstrates this:


==================================
Option Explicit
Sub TestNBSP()
Dim NBSP As String
Dim oRE As RegExp
Const sPat1 As String = "\xA0"
Const sPat2 As String = "\s"
Const sPat3 As String = "\S"

NBSP = Chr(160)

Set oRE = New RegExp
oRE.Pattern = sPat1
Debug.Print oRE.Pattern, oRE.Test(NBSP)
oRE.Pattern = sPat2
Debug.Print oRE.Pattern, oRE.Test(NBSP)
oRE.Pattern = sPat3
Debug.Print oRE.Pattern, oRE.Test(NBSP)
End Sub
=====================================
Immediate window:

\xA0 True
\s False
\S True
------------------------------------

--ron