USR5600 (005600-00) PCI Software Modem
Download the USR5600_9X_ME.exe file to a temporary location on your computer's hard disk drive.
Double-click the file in Windows Explorer and the file will self extract to a folder named C:\USR\USR5600.
When prompted by Windows, direct the installation to the C:\USR\USR5600 folder in order to complete the installation.
Note: Minimum system requirements to run this file are at least a Pentium 200 with MMX.