If you want to install SYNCING.NET on your computer you will need the .NET framework. .NET framework is a Windows-Update which SYNCING.NET downloads directly from the Microsoft site.
Note: The download version from SYNCING.NET ".NET Framework " will download all required informations from the Microsoft.com. You will need a online-connection. In Windows 8 and higher you can install the .NET Framework 2.0 as part of the .NET Framework 3.5 under "Programs and Features" in the Windows Control Panel.