How do I upgrade my Pace NB 56 Voice modem to V.90 on my computer running Windows 95/98 or NT4? FAQ174 To upgrade your modem to the V.90 standard you need to download the appropriate flash update program (56nb_up.exe for Windows 95/NT4 or win98up.exe for Windows 98) for your Pace NB 56 Voice modem from the driver database section of the Infoserve.com website at http://www.infoserve.com. Click to Go Back to choose a different category