trick of using a trail days ... up to infinity

hey guys ,
now stop using the duplicate software ...
bcoz i come 2 knw the trick where u will able to increase trail days of the softwares/application
..

let me start...
1st download the trails version of the software .
next, change the time setting upto which u will want to use the software .
next step , just install the software .
that sit , change the time to a real date ..
now check wooohh... itz.......
working naaaa....
by ;
PARI=-->passionate boy