Network Instruments WAN Probe Kit - Manual (Page 20)

14 Updating the WAN and 10/100 Drivers
The wizard tells you which driver it found:
5. Click Next. The wizard informs you that the driver it found lacks a Microsoft digital
signature:
6. Click Yes. Network Instruments has tested and verified that the driver works correctly
with Observer and Probe on Windows 2000.
After installing the driver, the wizard displays a confirmation dialog telling you that
the driver was successfully installed. Click Finish to close the wizard.