This should be the correct driver for the 0637 modrm for Win 9X.You have to use the product code not the model number when looking for these drivers.You can find them by going to the OEM page at USR.
|Manufacturer||U.S. Robotics, Inc.
|Compatible Hardware Ids|
The following files are found inside the driver download file.
|WM0081.CAT||9.8 KB||25 Feb 1999|
|turbovbf.vx_||4.8 KB||29 Dec 1998|
|turbovcd.vx_||9.7 KB||29 Dec 1998|
|winmodem.inf||58.7 KB||25 Feb 1999|
|WINMODEM.VX_||389.3 KB||1 Feb 1999|
|migrate.dll||34.3 KB||3 Aug 1998|
|WMDLL.DL_||24.4 KB||1 Feb 1999|
|WMEXE.EX_||27.6 KB||1 Feb 1999|
|WMLDR.VX_||4.8 KB||1 Feb 1999|
|WMPASS.DL_||48.2 KB||1 Feb 1999|
|wmwave.cat||9.8 KB||25 Feb 1999|
|wmwave.inf||1.2 KB||25 Feb 1999|