>I have a program that a local business person is interested in buying.  He
>wants to "try it out" first.  I have my doubts.

>What I would like to do is to install it for him, but at a given date the
>program deletes automatically.  I have no experience in this concept.

>How & what can I do to make the program delete itself after a specific date?
>Is there another way of protecting myself from someone getting a freebee
>after I put in a couple hundred hours or so of work?

>Suggestions?

>Thanks,
>Jim Y

> >I have a program that a local business person is interested in buying.
He
> >wants to "try it out" first.  I have my doubts.

> >What I would like to do is to install it for him, but at a given date the
> >program deletes automatically.  I have no experience in this concept.

> >How & what can I do to make the program delete itself after a specific
date?
> >Is there another way of protecting myself from someone getting a freebee
> >after I put in a couple hundred hours or so of work?

> >Suggestions?

> >Thanks,
> >Jim Y

> Make an entry in the Registry that contains the last valid date for the
trial to
> run.  Have the program compare the current date with the expire date and
display

license."
> You will also need a means to process a license key (for you generate a
key, for
> the program to verify that the key is valid) so the expiration date can be
set
> to a non-expiring value - 20 years in the future is probably OK ;-)

> VB3 source code: http://thelabwiz.home.mindspring.com/vbsource.html
> VB6 source code: http://thelabwiz.home.mindspring.com/vb6source.html
> VB6 - MySQL how to: http://thelabwiz.home.mindspring.com/mysql.html
> Fix the obvious to reply by email.

>As I said this is new to me.  I have no idea how to place an entry in the
>Registry.  Could you be specific and detailed?
>Thanks,
>Jim

> >As I said this is new to me.  I have no idea how to place an entry in the
> >Registry.  Could you be specific and detailed?
> >Thanks,
> >Jim

> Let me refer you to one of the gurus on the newsgroup:
> http://www.mvps.org/vbnet
> Search there for registry.

> VB3 source code: http://thelabwiz.home.mindspring.com/vbsource.html
> VB6 source code: http://thelabwiz.home.mindspring.com/vb6source.html
> VB6 - MySQL how to: http://thelabwiz.home.mindspring.com/mysql.html
> Fix the obvious to reply by email.

> Or else you could do a special trial version with a hard-coded date in
> it. In the startup code compare this date with the current date and
> end the program if it has passed. If this guy likes your software you
> can give him a non-limited copy when he pays.

> > >As I said this is new to me.  I have no idea how to place an entry in
the
> > >Registry.  Could you be specific and detailed?
> > >Thanks,
> > >Jim

> > Let me refer you to one of the gurus on the newsgroup:
> > http://www.mvps.org/vbnet
> > Search there for registry.

> > VB3 source code: http://thelabwiz.home.mindspring.com/vbsource.html
> > VB6 source code: http://thelabwiz.home.mindspring.com/vb6source.html
> > VB6 - MySQL how to: http://thelabwiz.home.mindspring.com/mysql.html
> > Fix the obvious to reply by email.