I have a program working with Excel 2003 with VBA that uses the DEC2HEX
function within the VB routine (not in the Excel sheet)

I have turned the Analysis and the Analysis VBA add-in on.

I have also checked the atpvbaen.xls reference on in the VBA tools section.

The Dec2Hex (and Hex2Dec) routines return sub or function not found error.

The help section says it does exist.. However I am not able to use it. Any
ideas on what can be done ?

----------- routine enclosed -------------
Private Sub CommandButton_ChangeSlaveAddress_Click()
Dim SlaveAddress As Integer
SlaveAddress = Hex2Dec(Range("SlaveAddressInput").value)

If SlaveAddress < 0 Or SlaveAddress 255 Then
MsgBox ("Invalid slave address entered!")
Else
Range("SlaveAddressInput").value = Dec2Hex(SlaveAddress, 2)
End If

End Sub
--------------------------
Thanks in advance