This is the VB method the use of encryption software to verify the serial number example, the relatively non-encrypted serial number, of course, can improve the reliability of the package contains two source, one is the registration process, a procedure is to generate a serial number, you can Learning about control. Registration process may be flawed, but the fix should be very simple.

............\在VB中用加密的方法实现序列号验证源代码
............\......................................\Form1.frm
............\......................................\Form2.frm
............\......................................\MSSCCPRJ.SCC
............\......................................\sn.txt
............\......................................\加密.vbp
............\......................................\加密.vbw
............\......................................\工程1.vbw
............\......................................\工程2.vbp
............\......................................\工程2.vbw
............\......................................\验证.vbp
............\......................................\验证.vbw

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