Event ID - 41

Event Id41
SourceTermServLicensing
DescriptionCant initialize policy module because of error Missing Policy module registry entry for product Microsoft Corporation, company 004
Event InformationThis problem may occur for one or more of the following reasons: <ul> <li>Cause 1: You are trying to install a Microsoft Windows Server 2003 CAL pack on a Windows 2000-based license server. <li>Cause 2: The Terminal Services Licensing component is corrupted or missing. <li>Cause 3: The Terminal Services registry key has incorrect settings.</li> </ul>

For more information about resolution click on the link given below to Microsoft article.
Reference LinksYou cannot install the Terminal Services CAL pack on a Windows 2000 server-based computer

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