The AntScope software is designed to support various models of RigExpert analyzers under Windows.
Stand-alone AntScope archives are available in the files section of the website. Various versions are available, but it is recommended to download the latest one.
ZIP files: please unzip the file: put AntScope.exe and ftd2xx.dll into the RigExpert Antenna Analyzer folder inside Program Files (or into any other folder, if you wish). Put the contents of the RuntimeFiles folder into C:\Users\username\AppData\Local\RigExpert\AntScope\.
EXE files: just download and run the installer.