We have developed a new VB based software program intended for resale and have reach the point of implementing some sort of 14 day demo functionality into it.
Are there any suggestions regarding how we should determine whether the program's demo 14 days have passed. A text file or registry key seem too easy to bypass and figure out if someone wants to compare the results of a system snapshot before and after install. Likewise having the 14 days being based on the system clock, could be bypassed with the reversal of the clock's date.
How should we include demo functionality into the program? How would those that have developed applications for resale done this? What would your expert suggestions be?
Thank you for you help.