This multi-installer contains all installers needed to run the evaluation software: - FTDI USB drivers (x86 and x86_64) - Flash player for Firefox, Safari and Opera - Flash player for Internet explorer - NI VISA runtime environment - XEN1200 evalution software (contains the LabVIEW runtime environment) If you already have a version, you can cancel it's installer. If you don't cancel, the installer will attempt to install the latest version for each as of this writing. The basis of all installers included in the package is the 7-zip archive format. In case of problems during installation, you can extract the individual installer packages with 7-zip (or any archiving software supporting 7-zip archives). For instance if you need a .inf file from the FTDI USB package.