I just installed Windows 7 on a netbook with Pronto Edit 4. The Keyspan USA-19QW USB to Serial adapter I normally use worked with XP doesn't work with Windows 7. I also have a CoolGear USBG-232 USB to Serial adapter which has a Vista driver. It works well with Windows 7 and Pronto Edit 4 (Just be sure to reboot after installation of adapter software and/or Pronto Edit 4).