To install Purge, launch the file called "Purge.msi".
Click on 
to start the Setup Wizard
Check the box to validate terms of license agreement.
By default the Setup Wizard installs all the files on the directory C:\Program Files(86)\Netia\Purge.
Check the box in order to create the shortcuts.
Click on .
Click on 
.
Click on 
Purge is installed.