If you are installing the software from a CD, place the CD in your drive and after a few moments you will see a screen like this:

If this screen does not appear, the autorun feature on your PC may be disabled, to proceed in this case find the setup program on the CD and double-click on it.

To begin the installation process, click on the Next>> button until you get to a page that has a button labelled Install Match-IT. Click on this and continue from Loading the software below.