[AccessD] Mac address

Jim Dettman jimdettman at earthlink.net
Mon Jan 5 07:55:39 CST 2004


John,

  Erwin hit the nail right on the head; it's multiple NIC's that are loaded.
I had a dial-up adapter on LANA 0, which is what the code was grabbing.  As
soon as I deleted that, the code I sent you then correctly grabbed my MAC
address.

  If I have a little free time later today, I'll research what it takes to
iterate through all the LANA's.  This question comes up Experts Exchange
quite frequently and from the sounds of things, there is not a good solution
out there.

Jim Dettman
President,
Online Computer Services of WNY, Inc.
(315) 699-3443
jimdettman at earthlink.net

-----Original Message-----
From: accessd-bounces at databaseadvisors.com
[mailto:accessd-bounces at databaseadvisors.com]On Behalf Of John W. Colby
Sent: Sunday, January 04, 2004 4:16 PM
To: Access Developers discussion and problem solving
Subject: RE: [AccessD] Mac address


Yep, I think it's exactly that - the protocols loaded.

John W. Colby
www.ColbyConsulting.com

-----Original Message-----
From: accessd-bounces at databaseadvisors.com
[mailto:accessd-bounces at databaseadvisors.com]On Behalf Of Jim Dettman
Sent: Sunday, January 04, 2004 12:57 PM
To: Access Developers discussion and problem solving
Subject: RE: [AccessD] Mac address


I would agree.  A MAC address is usually a lot more stable then a HD serial
number.  I wasn't aware though that a spoof utility was out there.

Looks like the code will need to dig a little deeper and get the actual
hardware address.

BTW I'm not sure why that code I sent you returned 0.0.0.0.  did the same
thing here on Win98SE.  It's never failed before, but then it's been a few
years since I used it.  I looked it over real quick and I see it's making a
NetBIOS call, which the success of might be dependant on the protocols
loaded.

Jim Dettman
President,
Online Computer Services of WNY, Inc.
(315) 699-3443
jimdettman at earthlink.net

-----Original Message-----
From: accessd-bounces at databaseadvisors.com
[mailto:accessd-bounces at databaseadvisors.com]On Behalf Of John W. Colby
Sent: Sunday, January 04, 2004 11:53 AM
To: Access Developers discussion and problem solving
Subject: RE: [AccessD] Mac address


And how does that make the disk sn better.  That DOES change with every
format (and every new HD).  When was the last time YOU changed your MAC
address?  As form myself, I've NEVER done so.  When was the last YOU
formatted (or replaced) your hard disk?  As for myself, at LEAST half dozen
times over 4 systems just in the last 4 or 5 years.

Hmmm.... Never or 1/2 dozen times...

John W. Colby
www.ColbyConsulting.com

-----Original Message-----
From: accessd-bounces at databaseadvisors.com
[mailto:accessd-bounces at databaseadvisors.com]On Behalf Of Haslett,
Andrew
Sent: Sunday, January 04, 2004 9:02 AM
To: 'Access Developers discussion and problem solving'
Subject: RE: [AccessD] Mac address


Hard Disk SN is far better than using the MAC address.  Jees, some BIOS
these days even allow you to change your MAC address yourself.

-----Original Message-----
From: John W. Colby [mailto:jwcolby at colbyconsulting.com]
Sent: Sunday, 4 January 2004 2:19 PM
To: Access Developers discussion and problem solving
Subject: RE: [AccessD] Mac address

LOL.  I learned a long time ago not to sweat the small stuff.  If there are
hackers figuring out how to hack Microsoft's $100 million copy protection, I
am not going to survive a determined attempt to get around my stuff.

On the other hand, I assume you lock your front door.  And I assume there is
glass in the door that anyone who wants in could just smash to reach in and
unlock your door.  So why do you bother?  Because the lock keeps 99% of the
people out of your house.

99% is good enough for me.  I will not even bat an eyelash nor give a second
thought to the other 1%.

99% of the effort COULD be spent stopping (or failing to stop) that last 1%.

John W. Colby
www.ColbyConsulting.com

-----Original Message-----
From: accessd-bounces at databaseadvisors.com
[mailto:accessd-bounces at databaseadvisors.com]On Behalf Of Stuart McLachlan
Sent: Saturday, January 03, 2004 7:00 PM
To: Access Developers discussion and problem solving
Subject: RE: [AccessD] Mac address


Take a look at http://www.klcconsulting.net/smac/
for a way to defeat this copy protection scheme.

(Follow the link to "the research of Kyle Lai" for a lot of good info on MAC
addresses)


On 3 Jan 2004 at 13:34, John W. Colby wrote:

> Yea, but you have to start somewhere.  More and more NICs are embedded
right
> in the motherboards so this is getting less and less likely.
>
> John W. Colby
> www.ColbyConsulting.com
>
> -----Original Message-----
> From: accessd-bounces at databaseadvisors.com
> [mailto:accessd-bounces at databaseadvisors.com]On Behalf Of Gustav Brock
> Sent: Saturday, January 03, 2004 12:53 PM
> To: Access Developers discussion and problem solving
> Subject: Re: [AccessD] Mac address
>
>
> Hi John
>
> Hmm ... so the user changes his/hers NIC and is hosed ..?
>
> /gustav
>
>
> > Date: 2004-01-03 18:14
>
> > Well... I'm looking at a machine specific piece for copy protection.
The
> > work station name might be specific to a network, but is created by
> > the software (or user doing the install) so if the machine went down
> > (as
many
> of
> > mine have over the last few years) if the user didn't select the
> > same
name
> > then the key wouldn't work.
>

--
Lexacorp Ltd
http://www.lexacorp.com.pg
Information Technology Consultancy, Software Development,System Support.



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