Complete either of the following to resolve this issue:
  1. Establish internet connection on the computer where you are installing The Raiser's Edge 7.96 and run setup.exe to begin the installation again; OR
  2. Go to a computer that does have internet connection, download the offline .NET Framework 4.6 installer from Microsoft, and then copy it to the computer that does not have access to the internet.  Next, install .NET Framework 4.6 and run setup.exe again to install the Raiser's Edge 7.96