Observer 6.x and later
Title: Installing Observer on Windows NT 4.0
describes installing LICENSED Observer using Microsoft Windows NT.
The same instructions apply to installing the time-limited DEMO
of Observer on Windows NT.
The installation of Observer will involve the following three steps:
1. Run SETUP.EXE from Windows NT
2. Add the NDIS protocol driver (NDIS Service)
3. Restart Windows NT
1: Copy the Observer files onto the NT PC
Start Windows NT and choose “File”, “Run”. In the “Run” dialog
box, fill in the path to the executable SETUP.EXE (typically [your
The initial setup dialog box will then ask to select the installation
Next install will welcome you and then if you want install Observer,
Advanced Probe or RMON Probe. Select Observer.
Install will then ask where to copy the Observer files. Unless
you have a compelling reason to install Observer elsewhere, we suggest
that you install Observer in this default destination.
Install will now copy the Observer files onto your PC.
Install will ask if you are installing in DEMO or licensed mode,
uncheck the “Demo Simulation Mode” checkbox.
2: Add the NDIS Service
Once install has copied the Observer program files, you will
see a short synopsis of the protocol driver installation instructions:
If this is a first time install, keep the “Install Protocol Drives”
box checked. Once “O.K.” is pressed, install will launch the Windows
NT Network Setup dialog.
From this dialog:
a) Select the “Services” tab, then press the “Add” button.
b) In the “Select Network Service” dialog, press the “Have Disk”
c) In the “Insert Disk” dialog, fill in the path of the Observer
installation directory or CD (typically C:\Observer Files) and press
d) When Windows NT displays the Network Instruments’ Service driver,
“VMONI1, Protocol Analyzer” click “O.K.”
VMONI1.SYS will be added as a service to Windows NT networking.
When Windows NT re-displays the “Network” dialog, press “O.K.”.
3: Restart Windows NT
Once the Observer files have been installed on your PC and the
network configuration has been modified, Windows NT will ask if
it may restart. Once you reboot or restart Windows NT, you will
be able to run Observer by double clicking on the Observer icon
in the Observer.