About code protection in VB C.F. application [modified]
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Hi all. To make my application only working on some specified devices, I used this approach: When program start, first of all retrive (with the KernelIoControl method) the Device ID of device in which it run, and then compare it with some autorized Device ID strings contained in the application. All works correctly, but I ask to my-self if this is a sufficentely safe way. I tried to search in the executable file the same Device ID strings I written in the development (VB) time, and them are not been found. Are these strings encripted? Another question: As I read that often several device returns the same device ID, or the same device returns different Device ID (and/or different string-lenght)depending on which method is used to retrive it, where I can read an exaustive article related with above question? Thanks for help Ignazio
modified on Sunday, January 25, 2009 4:34 PM