Disk Drive Serial Number? 
Author Message
 Disk Drive Serial Number?

I think I have seen this question before, but cannot remember if there
was an answer...

I have found hard drive serial numbers to be invaluable in copy protection
schemes.  I have a routine which returns the serial number of a disk (if
it has one) which "works", but in FPW and VFP it is ugly since it needs to
use a RUN command.  Does anyone know of a way in VFP to return the drive
serial number without having to run an external DOS command?

- John



Fri, 26 Mar 1999 03:00:00 GMT
 Disk Drive Serial Number?


Quote:

>I think I have seen this question before, but cannot remember if there
>was an answer...

>I have found hard drive serial numbers to be invaluable in copy protection
>schemes.  I have a routine which returns the serial number of a disk (if
>it has one) which "works", but in FPW and VFP it is ugly since it needs to
>use a RUN command.  Does anyone know of a way in VFP to return the drive
>serial number without having to run an external DOS command?

>- John

John,

I have a routine/function in a FLL that returns the serial number of the hard drive.

Randall Hodge



Sat, 27 Mar 1999 03:00:00 GMT
 Disk Drive Serial Number?

Sorry for the english!!

I ave a .bin routine for check the HD serial number for FPW.




Quote:
> I think I have seen this question before, but cannot remember if there
> was an answer...

> I have found hard drive serial numbers to be invaluable in copy
protection
> schemes.  I have a routine which returns the serial number of a disk (if
> it has one) which "works", but in FPW and VFP it is ugly since it needs
to
> use a RUN command.  Does anyone know of a way in VFP to return the drive
> serial number without having to run an external DOS command?

> - John



Sat, 27 Mar 1999 03:00:00 GMT
 Disk Drive Serial Number?


writes:

{ I have found hard drive serial numbers to be
{ invaluable in copy protection schemes.

So if I buy your software, I will not be permitted to upgrade my system?

Ralph Morse

=====================

=====================



Mon, 29 Mar 1999 03:00:00 GMT
 Disk Drive Serial Number?



Quote:
: writes:

:
: { I have found hard drive serial numbers to be
: { invaluable in copy protection schemes.
:
: So if I buy your software, I will not be permitted to upgrade my system?
:
: Ralph Morse
:
: =====================

: =====================

Ralph,

Have you visited alt.2600.crackz lately?

 How about if someone worked on your computer and decided that they wanted to
copy that fancy app without telling you? Or its a network app? I guess on the
network app you could set a flag before compile or store it in a file but sooner or
later some little *Cracker* would figure it out.

 When you change your hard drive you could, get a new key from me, on mine.
Of course it tells you that in the license agreement. Everyone reads those, don't
they?<s>

Minor C.



Tue, 30 Mar 1999 03:00:00 GMT
 Disk Drive Serial Number?

Hi Minor C.

I'm having the same problem, do you know how to create an effective
Security routine, what I'm looking for is when the program is copied,
it automatically 'switch' to demo mode, but i need the hd serial number
or window serial number as reference... any idea

thanks

Willie



Tue, 30 Mar 1999 03:00:00 GMT
 Disk Drive Serial Number?

I would like to inform all developers, that as a consultant I recommend
to my clients that they NEVER purchase any software with a copy
protection scheme.  There are lots of us who feel that paying extra to
cover the cost of copying and not having to deal with the problems
inherent in any copy protection scheme (the one mentioned might add to
the downtime if my client suffers a hard disk failure-downtime costs
companies money).  Of course, the 'extra' we pay for non-copy protected
software is often equal to the 'extra' we pay for the programmers time
and effort in developing the copy protection scheme.

The cost of Piracy and 'stolen' programs is way inflated, I think by a
factor of about 100.  Most people who copy your program do so for one of
three reasons:

        1.) They want to test it to see if it is worth buying.
        2.) They are a consultant who is going to be questioned about
            the software and want to test it, but they don't want to
            use it just support it.
        3.) They want to use it with out paying for it.

In the first 2 cases you will ultimately get one possibly more sales as
a direct result of the 'piracy', unless, of course, your program is not
worth what you are charging for it.  In the third case they're not going
to buy you software anyway, if they can't use yours they will just go on
to someone else.  Of course, in case three they will give it to one or
more of their friends, amny of whom will feel obligated by a sense of
rightness to purchase the software for themselves.  Several of the
software packages I use (and have paid for) I originally received in tht
manner.

I think those who are copy protecting their software are actually
losing.  The 'lose' the cost of the copy protection scheme (i.e. they
could sell the software for the same price with fewer development
hours), they 'lose' whatever sales would be generated by the 'piracy'.

I say DON'T BUY COPY PROTECTED SOFTWAR.  There are alternatives.

Alicia Carla Longstreet
Open Covenants, Openly Arrived at.  Open Systems all the way!!!



Tue, 30 Mar 1999 03:00:00 GMT
 Disk Drive Serial Number?


: Hi Minor C.
:
: I'm having the same problem, do you know how to create an effective
: Security routine, what I'm looking for is when the program is copied,
: it automatically 'switch' to demo mode, but i need the hd serial number
: or window serial number as reference... any idea
:
: thanks
:
: Willie

Hello Willie,

In VFP, the following link should give you some Ideas.

http://www.microsoft.com/kb/developr/fox/q139547.htm

In FPW and FPD I'll send you some info when I get  back to my office,
if you would like.

I wouldn't recommend that you use the volume serial number or the windows
serial number alone for this purpose. I suggest that you take a good look at
the ADIR() function and let your imagination run wild.

Have fun,

Minor C.



Tue, 30 Mar 1999 03:00:00 GMT
 Disk Drive Serial Number?



:>I would like to inform all developers, that as a consultant I recommend
:>to my clients that they NEVER purchase any software with a copy
:>protection scheme.  There are lots of us who feel that paying extra to
:>
:>I say DON'T BUY COPY PROTECTED SOFTWAR.  There are alternatives.
:>
:>Alicia Carla Longstreet

Hi Alicia,

I would have to say, that I COMPLETELY disagree with your thoughts on this
subject.  I have a program that I am selling for $500 a copy, that took me a
course of 8 years to develop.  I have been out on SEVERAL installs, and I
would say that 95% of my clients, are illegally copying and using software.  
Since the audience of my program keep in good relations with thier
"competitors", and sometimes share information, costs, and other things, there
is about a 90% chance that each one of my sales would be illegally copied to 2
or three other companies, who would use it without paying.  This equates to a
$1000 - $1500 hit each time this happens.

For me, a copy protection scheme is definitely the key.  I can send my
software to anyone (I even allow it to be downloaded from my home page), and
if they give me a call, I give them a free 30 day activation code.  This code
activates my program with -NO- restrictions for 30 days.  Since my program is
based on dates to handle billing and A/R, it would do them no good to set
thier dates back to use my program continously.  AND, when they decide to
purchase my product, all I need to do is give them a different activation code
to make the copy "licensed", and send out a manual.  This allows them to keep
the data they originally generated, and start to use the program right away.

Now there may be some instances where copy protected software can be an
inconvenience, but sometimes it is what keeps us honest folk in business.

(Not to mention, I have a custom written client database that contains my
clients, the software they own, contact names, etc.  So if something DOES
happen to thier hardware, I have no quams about giving a new activation code
to keep them running)

Anyways, there is my $.02



Fri, 02 Apr 1999 03:00:00 GMT
 
 [ 9 post ] 

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