Prüfen ob der Computer zu einer Domäne gehört.

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/// <summary>
        /// Determines wether the computer is member of a NT-Domain or not.
        /// </summary>
        /// <returns>Returns true if the computer is member of a NT-Domain, otherwise false</returns>
        public static bool IsDomainMember()
        {
            try
            {
                ManagementObjectSearcher searcher = new ManagementObjectSearcher("root\\CIMV2", "SELECT * FROM Win32_ComputerSystem");
                foreach( ManagementObject queryObj in searcher.Get() )
                {
                    return bool.Parse(queryObj["PartOfDomain"].ToString());
                }
            } catch( Exception e )
            {
                throw new ManagementException("Error retrieving domain membership status.", e);
            }
            throw new ManagementException("Error retrieving domain membership status.");
        }