System.Xml.XmlReaderSettings.EnableLegacyXmlSettings C# (CSharp) Method

        static internal bool EnableLegacyXmlSettings()
        {
            if (s_enableLegacyXmlSettings.HasValue)
            {
                return s_enableLegacyXmlSettings.Value;
            }

            if (!System.Xml.BinaryCompatibility.TargetsAtLeast_Desktop_V4_5_2)
            {
                s_enableLegacyXmlSettings = true;
                return s_enableLegacyXmlSettings.Value;
            }

            bool enableSettings = false; // default value
            if (!ReadSettingsFromRegistry(Registry.LocalMachine, ref enableSettings))
            {
                // still ok if this call return false too as we'll use the default value which is false
                ReadSettingsFromRegistry(Registry.CurrentUser, ref enableSettings);
            }

            s_enableLegacyXmlSettings = enableSettings;
            return s_enableLegacyXmlSettings.Value;
        }