How to upgrade
To upgrade a product: make sure the application doesn't run and then uninstall it. Next, download and install the new version. All settings will be picked up by the new version. If the new version asks for a registration number just use the number you already have.
Upgrades are free for registered users.
These programs will be fully functional for the first 7 or 30 days after their installation, called the trial period, after which you will have to purchase to continue using it. During the trial period you can evaluate the software to its full extent.
Don't purchase an application without having tried it, because refunds will not be given once a registration number is issued to you.
These programs are really free. You can use them as long as you want, on as many machines as you like.