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Making trial version...

P: 2
Hi everyone ! I would like to make unbreakable trial version of my project in MSAccess2000 or later. I devide project in two basic parts: DB part (.mdb) and application (buisiness logic) part (.mde). I've made automatic instalation, but I'm not satisfied about protecting the apllication. I want to make secure trial instalation of product depending on time of using it. Can you help me to choose some of good ways of making such apllications in VB? Thank you...
Mar 16 '07 #1
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5 Replies


100+
P: 1,646
Moved your thread to the access forum
Mar 16 '07 #2

MMcCarthy
Expert Mod 10K+
P: 14,534
What about your current structure do you feel is insecure?

Mary
Mar 17 '07 #3

P: 2
What about your current structure do you feel is insecure?

Mary
OK, I put the password over the DB file (mdb) using some unusual characters, but that is not worring for me. App. file (mde) was created with AllowBypassKey(...,FALSE) just because to prevent others to use Access enviroment over the application, but I know that the experience users can easy remove this property, link the tables, queries...so i feel a bit insecure. On the other side, thinking about the trial version i was planing to use registry entry during instalation, and making ordinary text file witch I'll be station somewhere on the file system with "uncognizable" content indicating the trial period of using application. Those information I can control through the application, but, you know, those informations can be descover...What do you think about this ? ...and I would like to implement some stronger and wiser protection, and control the trial period at the instalation instant from inside of application. Do you have any suggest? Best wishes and thank you...
Mar 17 '07 #4

MMcCarthy
Expert Mod 10K+
P: 14,534
Have a look at this website. It has comprehensive information on Access Security.

http://www.jmwild.com/Accesssecurity.htm

Mary
Mar 17 '07 #5

dima69
Expert 100+
P: 181
This is really a problem. You cannot prevent an advanced user from directly access the tables in the backend database, even if it is password protected (by importing linked tables from the frontend database). Not mentioning that MSAccess database password can be easily discovered with some applications ...
So If you find any solution for that pls let us know :)
Mar 18 '07 #6

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