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Compatibility problems with NOAH System 3
Windows Firewall blocking the NOAH System services

After installation of Windows security updates, NOAH System displays an error message: “Could not connect to selected NOAH database….”

Norton Internet Security 2008

After installing updates to Norton Internet Security 2008 and rebooting your machine, an IDispatch error is displayed when logging into NOAH System 3.6.

McAfee

Unblocking NOAH in McAfee.

Event Viewer

Using the Event Viewer to troubleshoot firewall problems.

Avast security update

The Avast security update causes error 'License file in use is invalid'.