It calculates incode based on outcode for AD100 device. Supported cars are Honda, Acura, Toyota, Lexus and Jaguar.

In order to combat piracy, the original company who made AD100,T300, MVP, AUTOMAN ask for a verification code when you do 

do Honda, Toyota, Mazda, Jaguar, Ford and other cars in last step. Original AD100 can require the code from their website, but the copy can't be provided. 

There is a software can instead of the code.You don't need the verification code if you have the software.Copy can be used same as original, it is the essential software for T300 user.