Re: [exelist] locking a program to a certain computer

["Bogusław Brandys" <brandysb@...>]

The best you can do is to read specific number from hardware. Good choice for this is hardcoded HDD serial (but not Volume serial which is setting by OS) or in Pentium III processor specific number.

Note that if you want read HDD hardcoded serial in Win9X generally you should write or obtain VXD driver working in Ring 0 mode or use old trick to change to Ring 0 mode in your code .In DOS it is quite simple and i'm sure you will find many examples how to do this.

 

 

Best Regards

Boguslaw

 

 

 

 

Hi guys,

 

I was wondering how it is possible to lock a specific program to a specific computer. I mean what are the special characteristics that differs a computer from another, and it identify that computer no matter what happened.

 

 

 

 

Actually, I am in a middle of programming project for a protection scheme. I want a something that is permanent in a computer, and differs from a computer to another to generate a special key from it to link programs to.

 

I was planning to use the hard disk serial number, but it will changed if the user formatted his hard disk, and then he will need a new licensing key.

 

I will appreciate if any ideas on better alternatives, for example using the bios serial number (How to get it?).

 

Best regards

 

Hazem

hazem@...