From Netintelligence Knowledge Base
To uninstall Netintelligence, go to your Windows Control Panel and select Remove a Program (Add or remove programs on Windows XP). From here a list should be shown of Programs that are installed on your Computer. Select Netintelligence from the list and uninstall.
Once the uninstall process has finished, please restart your computer.
Note: If the uninstall program asks you for a password, please see the following page - How do I uninstall Netintelligence (Home Access)