how to prevent users from cheating apps with expiration dates

Hi!Can you give me some tips in the following:I want to restrict the time a user can use an application for 45 days. However, the user can cheat this by changing the system clock. How can I overcome this problem?Any ideas?Filipe
[263 byte] By [filipea] at [2007-11-27 0:34:09]
# 1
I think you landed up in a wrong forum. Put this question in a general forum, May be you will get answer.I don't have much idea on this. May be you need to get the system clock and have a timer or something like that.Using cookies also we can set the expiry date.
Mathewhaia at 2007-7-11 22:41:34 > top of Java-index,Core,Monitoring & Management...