Stupid inherits issue, or not?. [resolved]

[<ABX]

Ah.. i missed the form... (i didnt open the project)

what i think:

Not bad...
You may find using Regular Expressions a better solution for doing this...
I still would prefer you to use IndexOf (as it is the vb.net way, and it still is using it anyway) (same with mid. (String.Substring)
You are using Option Explict, Option Strict
Modulization (splitting code up into classes, blocks) ok, you still do alot in your form.
Identing: good.

Private Function isSpace(ByVal var As String) As Boolean
        If var = Chr(32) Then isSpace = True
    End Function
 
    Private Function isLetter(ByRef var As String) As Boolean
 
        If Asc(var) >= 65 And _
            Asc(var) <= 90 Or _
            Asc(var) >= 97 And _
            Asc(var) <= 122 Then
 
            isLetter = True
        End If
 
    End Function

could be replaced with

Char.IsLetter("x"c)
Char.IsWhiteSpace("x"c)

Its pretty good