Self-extracting ZIP file. Double-click the file and let it unpack into C:\WINDOWS\TEMP.
Click with the secondary mouse button the My Computer icon, then select Propperties from the menu, click the Device Manager tab. In the list, double-click the System Devices section and check for these devices:
PCI Standard ISA Bridge
PCI Standard Host CPU Bridge
Also check the Universal Serial Bus Controller section for:
PCI Universal Serial Bus
And check the Hard Disk Controllers section for:
Standard Dual PCI IDE Controller
If these exist in the list (names might vary somewhat), you may double-click the device, select the Driver tab and click Update Driver. Let Windows find the driver itself, or point it to C:\Windows\Temp.