How to use a trial program forever without activation

When you install software on a system the software writes the date of the installation into
a registry entry, if it is trial software then this will be saved in another folder as well to make sure it cant be simply changed.

There is a way however to bypass the check, as for example some trail software that expires in 10 days would check the registry entry and compare it with the current date.

To bypass this check you can download "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.

RunAsDate 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.

To get it go here.