Download the USR5600_2K_XP.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.
Your modem will install with a default driver in Windows XP, and needs to be updated from the Device Manager.
Right-click My Computer, select Properties, select Hardware, and select Device Manager.
From the Device Manager window, double-click Modems, and right-click on the default USRobotics 56K Fax Host Int entry. You will then be instructed to select the updated driver. The Hardware Update Wizard will begin.
Select Install from a list or specific location(Advanced). Click Next.
In the Please choose your search and installation options window, select Don't search. I will choose the driver to install and click Next. Windows will show you the current driver that is installed for the modem.
Make sure USRobotics 56K Fax Host Int is selected and click Have Disk.
Click Browse to point to: C:\USR\USR5600.
Make sure usrf14k.inf is selected and click Open.
Restart your computer.
Note: Minimum system requirements to run this file are at least a Pentium 200 with MMX.