Public Function StrEncrypt(StrPwd As String) As String
Dim I As Integer
On Error Resume Next
If IsNull(StrPwd) Then
StrEncrypt = Null
Else
StrEncrypt = ""
For I = 1 To Len(StrPwd)
StrEncrypt = StrEncrypt & Chr(128 - Asc(Mid(StrPwd, I, 1)))
Next
End If
End Function