So with this being the case, just manually changing the system date to an earlier date will not solve the problem.For this purpose there is a small Tool known as RunAsDate.
RunAsDate is a small utility that allows you to run a program in the date and time that you specify. This utility doesn’t change the current system date, but it only injects the date/time that you specify into the desired application.
Intercepts the kernel API calls that returns the current date and time (GetSystemTime, GetLocalTime, GetSystemTimeAsFileTime), and replaces the current date/time with the date/time that you specify.It works with Windows 2000, XP, 2003 and Vista.
NOTE: FOLLOW THESE TIPS CAREFULLY
You have to follow these tips carefully to successfully hack a software and make it run in it’s trial mode forever.
1. Note down the date and time, when you install the software for the first time.
2. Once the trial period expires, you must always run the software using RunAsDate .
3. After the trial period is expired, do not run the software(program) directly.If you run the software directly even once, this hack may no longer work.
4. It is better and safe to inject the date of the last day in the trial period.
For example, if the trial period expires on oct 1 2009, always inject the date as sep 30 2009 in the RunAsDate.
Warning : AVG Antivirus reports that RunAsDate is infected with “Trojan horse Generic 10.Thk”. This will not harm ur pc,warning is just bcoz this is a wondow registry hack tool !