this is a drive for a sportster voice 33.6 faxmodem external.
unzip this file to a stiffy or sub directory on the pc , go to add new hardware , select "no i want to select from list", scroll to modems,click "dont detect i will selct from list",click have disk and point it to either the stiffy or subdirectory that you unzip to.
if the modem is detected, right click the my computer, go to device manager,select modems,click on the properties , ie if us robotics have an exclamation mark on it , select properties, click the driver tab , click update driver, and specify the location either on stiffy or the subdirectory that you have unzip to.
it works for me. goodluck.