How about rolling your own with something like the SiLabs toolstick (<$11 a piece).
I'm sure you could code protect them ( you can have a nice flasjing light on them as well.

Peter van Hoof

----- Original Message ----
From: James Newtons Massmind <jamesnewton@massmind.org>
To: Microcontroller discussion list - Public. <piclist@mit.edu>
Sent: Tuesday, January 16, 2007 2:25:55 PM
Subject: [BUY] USB Dongles


My main client is transitioning from a hardware to a software based system
(my fault <grin>). He is not at all comfortable with standard software
licensing (and in this specific case, I can see why) and so wants to include
a hardware locking key to control the use of the software. His clients won't
mind since they are used to the current hardware anyway. Other comments
regarding how evil dongles are should be tagged [OT], please.

The problem is that I can't seem to find any company that offers them in
medium small quantities ( low hundreds ), for reasonable prices ( e.g. < $20
each ) and releases source code samples for how to connect to them. I had
assumed there would be a DLL you include in your installation and you would
call if from your application, but everything seems to be much more complex
and secretive. We aren't trying to stop hackers here, just keep the users
honest.

Has anyone had any good experiences with this? I'd sure appreciate a
referral.

Thanks!

---
James.


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