1. ESD - Electronic Software Download.
This is a version that you purchase either a full version or as an upgrade to a previous version. With this you are given a SERIAL NUMBER.
You do not also get an activation number. If you want to re-install it at a later date you enter that same SERIAL NUMBER.
2. TBYB - Try Before You Buy.
With this one you can use the software for up to 30 days without having purchased it. If you decide to keep it then the trial version has to be ACTIVATED. The following steps will guide you through this process.
Firstly download the Try Before You Buy from this link.
It will ask you where you want to save the files and then you will see:

When you see this screen,

the program has paused awaiting user input. If like me you like to extract your set up files into their component parts, rather than using the single rather large setup file, you can now create a new directory on your hard drive, then copy/paste all of the (temporarily) extracted files to your new directory.
If you do not do so now you will not get another chance because at the end of the installation, the temporary directory gets deleted.
If you want to install VideoStudio from these setup files, the one you have to click is highlighted here:

During the installation process you will be asked to complete this screen.

You will get a thank you message to acknowledge that you have successfully completed the above.

After using the program you will be reminded of how many days are left of your free trial and you will be invited to purchase the product. If you choose to do so you will receive a Serial number from Corel after completing your purchase.

If you have a serial number or an activation number (explained below) then you should click the button at the bottom left of that screen.
If this is the first time you have ever installed the program then you will have a SERIAL NUMBER.
The SERIAL NUMBER is in this format VS13ABC-ABCDEFG-ABCDEFG-ABCDEFG
It is entered into the box at the top of the screen. You then activate it by clicking the [CONNECT] button.
If you do not have an internet connection then you should click the [Phone Corel] button where a member of Customer Services will guide you through the next stages.

If you have previously installed the program and you are installing it again for some reason - perhaps you have reformatted your hard drive and re-installed Microsoft Windows. You will by now have an ACTIVATION KEY
An ACTIVATION KEY is in this format 3ABC-4ABC-5ABC-6ABC you enter an ACTIVATION KEY into the box at the bottom right of the screen.
When you enter a SERIAL NUMBER you will see the following screen:

When you save the text file it will contain your new Activation Key.



