These files will enable WDM/USB on the released version of Windows NT
4.0 (build 1381).

Copy the following files to the \<windir>\system32\drivers directory:

NTPNP.SYS
PCI.SYS
PCI.INI
USBD.SYS
USBHUB.SYS
OPENHCI.SYS
USBLOOP.SYS

Using REGINI.EXE, import PCI.INI.  

    >>    regini pci.ini

Reboot the test machine.

You must then start the PCI driver from Control Panel, Devices.
Use the "Startup" button to select the Startup Type.
Select System for PCI enumeration to startup when the system boots.
Select Manual if you wish to use the Start and STop buttons in the 
devices control panel.

Only the pci enumerator, pci.sys, need be started with the devices control 
panel.  All other drivers are loaded automatically through the magic of 
Plug and Play.

