Welcome To The Home Of The Visual FoxPro Experts  
home. signup. forum. archives. search. google. articles. downloads. faq. members. weblogs. file info. rss.
 From: Adel Kadi
  Where is Adel Kadi?
 Fairfax
 Virginia - United States
 Adel Kadi
 To: Brian Walsh
  Where is Brian Walsh?
 Cork
 Ireland
 Brian Walsh
 Tags
Subject: RE: Demo For Application
Thread ID: 773 Message ID: 899 # Views: 2 # Ratings: 0
Version: Unknown Category: General VFP Topics
Date: Monday, June 18, 2001 6:45:41 PM         
   


> Adel,
>
> If you want something quick, then something like this (very rough!) pseudo code might do:
>
> ********************
> IF NOT FILE license
> &&Will only run the first time the application is run.
> CREATE FILE License
> Write Date + XX amount of days to a field, say license.expirydate
> CREATE FILE License2
> ELSE
> IF FILE License AND NOT FILE License2
> MESSAGEBOX("Demo Period Expired")
> QUIT
> ELSE
> &&OK Let the app run, but check the date written to the license file
> IF DATE() > license.expirydate
> DELETE FILE License2
> ENDIF
> ENDIF
> ENDIF
>
> ********************
> This means that even if the client resets the date on his computer, the application will refuse to start.
>
> The nice thing about this is that, if your client does purchase your software, then you can send them a "Licensing Executable" which should create the file "license2", and write an expiry date, say, 1/1/2037 to the license1 file.
>
> Alternatively, you could put a sort of timebomb into a method that creates new records, so that only a certain amount of records can be created.
>
> The amount of work that you put into the "demoizing" of your app should be proportional to the potential loss of revenue if the customer decides not to be honest.
>
> Brian.
>
Hi Brian
thank you very much for giving me this code and i appreciated alot.

kadi

ENTIRE THREAD

Demo For Application Posted by Adel Kadi @ 6/13/2001 8:23:21 PM
RE: Demo For Application Posted by Vladimir Trukhin @ 6/13/2001 9:33:44 PM
RE: Demo For Application Posted by Adel Kadi @ 6/13/2001 10:14:39 PM
RE: Demo For Application Posted by Brian Walsh @ 6/18/2001 6:33:04 AM
RE: Demo For Application Posted by Adel Kadi @ 6/18/2001 6:45:41 PM