On Tue, 28 Aug 2007 03:45:50 -0400, Laurence Harris <email@hidden>
wrote:
> On Aug 28, 2007, at 3:14 AM, Simon McCorkindale wrote:
>> I'm responsible for releasing a shareware application. I've noticed
>> that some shareware display a paid-customer's serial number in the
>> About/Startup windows and some don't. Is there a general, unwritten
>> rule of thumb as to whether this is a good or bad idea?
If the serial # is somehow tied to the machine (MAC hardware address, phone
home registry, etc.) so that it's useless on any but that machine then
there's probably little risk in putting it into the about box. Plus it's a
convenience for the legitimate user.
> One opinion is that it's kind of pointless to encrypt the serial
> number if you're going to display in the About box. ;-)
Public/Private keys not withstanding... ;-)
> Displaying it is fairly common. For some users it's the only place
> they'll be able to find it a month after they enter it.
True.
For more information read techn note TN1103: "Uniquely Identifying a
Macintosh Computer" at URL:
<http://developer.apple.com/technotes/tn/tn1103.html>
--
Enjoy,
George Warner,
Schizophrenic Optimization Scientist
Apple Developer Technical Support (DTS)
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