Trial evaluation 1

[CCortez]

Somebody knows how to make a software with a control of numbers of executions like a trial evaluation period of 30 tentatives, for sample? Not a expiration time.
Thank you for any help.
Ccortez

 

[icici]

Create a configuration file and write down the data in any format u like. Within the program read the data and then interprete as per ur requirements.

Lets say the configuration file for ur appln is "BILLS.BIN"

The file contains the data as follows

---> Date (yymmdd)
---> Julian day (Day when the software was installed)
---> Total Users allowed
---> Accessed # times
---> Access remaining
---> Expiry Date
---> Max transactions allowed
---> .... any other relevant information.



This file should be saved in binary format with basic encryption if possible. Since users rarely think of debugging the file. The data should be relevant to them

may be u get better options, the same may be typed for the benefit of others.



icici

 

[hnd]

I used a similar Way. But i did not use encryption of the Cofiguration file, but its Checksum. Each manipulation of the File will prevent the Program to Run.
hnd
hasso55@yahoo.com