LT WinModem 56k V90
Download then doubleclick on LTWM0548.EXE to start self-extractor. Let it unpack to a temporary directory, then go to that directory and run SETUP.EXE
During setup the "Wizard Add New Hardware" will appear, which has detected a PCI Communication Device. When this occurs click 'next', then select 'other location/list of drivers' (2nd option), then choose 'modem' from the list. In the split-screen on the left side click on the manufacturer, Lucent, and then click on 'Lucent Win Modem' on the right side. Now click 'next' - ANSWER YES - then 'next' followed by a click on 'finish'.
Now back in the setup screen click 'finish', which will restart your computer.