On the download page you will see you have three download options to chose from.
If this is your first time downloading and installing any 1483 Online software version,
then use the "FULL Installer".
NOTE: you must have either WinRAR or WinZIP to open the .Zip or .RAR versions of the Full
Installers. Choose the appropriate one for your situation. See the image below. If you need
one of these programs you may download a free evaluation copy of WinRaR by --
Special Note: If you have previously installed a version of 1483 Online or you know
100% for certain you have Microsoft .NET, then please use the Basic Installer instead.