The correct driver-inovia-webpro-rcw-500-windows-7 installs a serial-to-USB bridge (often based on Prolific or Silicon Labs chipsets) and adds a custom INF file that maps the RCW-500 to a COM port number (e.g., COM3, COM4).
: Use a tool like WinRAR or 7-Zip to extract the Setup.rar file into a new folder on your desktop. driver-inovia-webpro-rcw-500-windows-7