Window NT 4.0 Ethernet Diagnostic Program
 
The packet driver demonstrates the use of the upper edge NDIS 
services to communicate with NDIS MAC drivers.

The driver creates a device object which may be opened by Win32 apps
via a symbolic link.  A Packet may be sent by writing data to the
driver.  Receives may be pended to the driver by reading from the
driver.

The driver expects that it will be bound an Ethernet card as it makes
assumptions about frame size. If the driver is installed but the card 
doesn't exist, there will be a warning message box shown after the invalid
card is chosen at the first dialog. 

There are 3 necessary files:  
1. nt4diag.exe    ------ the App file
2. packet.sys     ------ the packet file
3. packet32.dll   ------ the App DLL file

The install procedure is as followed:
1. Place nt4diag.exe, packet.sys and packet32.dll in the system directory,
   such as c:\winnt\system32.
2. Execute nt4diag.exe directly.



Note: 1. The function buttom of "Receive" in nt4Diag.exe shows the test
      patterns that are sent by another diagnostic program.
      2. Do not execute nt4diag.exe more than once at the same time.
      3. After you close nt4diag.exe, please wait a few seconds (about
         2 seconds) before executing nt4diag.exe again.
            


