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Thread: How to patch a VB3 exe?

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    How to patch a VB3 exe?

    Decompiled it with VB3 decompiler and found the dongle checking code snippet, but how to patch a VB3 prog?

    How to find the pseudo opcode of the decompiled Visual BASIC statements?

    for example, here is the routine to check the dongle:

    Sub Command1_Click (Index%)
    Select Case Index
    Case 0
    Call sub04C7(2, 1) <----------------------check license
    Unload Form1
    inputForm.Show
    Case 1
    End
    End Select
    End Sub


    Sub sub04C7 (p0326 As Integer, p0328 As Integer)
    .................
    If (p0328% = 0) Then Exit Sub <--------------------- no need to check dongle
    ................. <------------------------ dongle check here
    End Sub

    so I want to change "Call sub04C7(2, 1) " to "Call sub04C7(2, 0)", or change "If (p0328% = 0) Then Exit Sub" to "If (p0328% = 1) Then Exit Sub". But how to find the corresponding opcode in the exe?
    Last edited by Solomon; November 1st, 2001 at 22:09.
    :DWARNING: Shareware authors are reading your detailed discussions without paying you!:D

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