USB Interfaces User’s Guide
1 - 21
For example, below is the registry entry for a 3800r that has a PID 016A. The device type entry is Vid_0536&Pid_016A, which
contains all real devices. Inside this key you can see an entry for the device with the serial number 123456789…
There are also two more entries of the same device type, but they do not have serial numbers. The OS creates a serial number
out of the USB tree in such cases. From this information you cannot tell if the same device is plugged into two different USB
ports, or if there are two devices connected to this PC. These two other devices are anonymous.
Enabling Full Write Access in Windows 2000
This section contains information about modifying your computer’s registry. Before you modify the registry,
be sure to back it up first, and make sure you understand how to restore the registry if a problem occurs.
In Windows 2000 and Windows XP there is limited access to some registry hives from inside the regedit.exe., even for
administrator accounts. This is a safeguard to prevent you from destroying your operating system. The following steps allow
you access to these registry hives.
1. Run the program
regedt32.exe
and select the view for
HKEY_LOCAL_MACHINE
.
!
