what do you mean??
when i download this and intall... this is not a trial?
Right. It is not a trial. It is free.
then after 16hours this will become a trial version?
No. If you d/l and reg it now, it stays free for as long as you keep it installed on your computer.
I doubt you could un-install it, and re-install it though. I haven't tried this particular software. I have tried other software from this site, and the registration did exactly as it was described: register the software within the stated time, and it is free. I still have some of it installed. Works fine.
It is just a coincedence that I happened to check that site to see what they were offering today, then came here and saw your post. It sounded like exactly what you were asking for.