cant install so no joy on debugging it.
'POSSetup.exe' appears to be compiled in VB6.
I dont think 'bvVisionRegistration.dll' is for the program serial check.
If it is, it does not compare against anything entered in the registeation process (according to your pic) except maybe the expiry date.
It might be for a supporting dll or ocx or something.
It checks a variable length serial for a custom CRC in 2 different locations (based on the length of the serial entered), followed by a table lookup and a base2 convertion that only is valid if it is all 0's. It does a bunch of crap in between but thats more or less the gist of the serial.
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