The file naddus.dll is a component of Lotus Notes from IBM. Lotus Notes is a collaborative software application. Used mostly in business environments, Lotus Notes allows users to access e-mail, schedules, and other applications including databases from their personal workstations.
An error with this file may disable some functions of Lotus Notes. You may need to reinstall Lotus Notes to repair the problem, but because this is a dll file error, you should start your troubleshooting by cleaning the registry.
The Windows registry is a complex database that contains information on all the files installed on your computer. Windows uses the registry to find those files when it runs software. If there is a mistake in the registry, your software does not work.
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