static void FreeURL(string networkURL, string securityDescriptor)
        {
            int retVal = SafeNativeMethods.NoError;

            try
            {
                retVal = SafeNativeMethods.HttpInitialize(HttpWrapper.HttpApiVersion1, SafeNativeMethods.HTTP_INITIALIZE_CONFIG, IntPtr.Zero);
                if (SafeNativeMethods.NoError == retVal)
                {
                    HttpServiceConfigUrlAclKey   urlAclKey   = new HttpServiceConfigUrlAclKey(networkURL);
                    HttpServiceConfigUrlAclParam urlAclParam = new HttpServiceConfigUrlAclParam(securityDescriptor);

                    HttpServiceConfigUrlAclSet configInformation = new HttpServiceConfigUrlAclSet();
                    configInformation.KeyDesc   = urlAclKey;
                    configInformation.ParamDesc = urlAclParam;

                    int configInformationSize = Marshal.SizeOf(configInformation);

                    retVal = SafeNativeMethods.HttpDeleteServiceConfiguration_UrlAcl(IntPtr.Zero,
                                                                                     HttpServiceConfigId.HttpServiceConfigUrlAclInfo,
                                                                                     ref configInformation,
                                                                                     configInformationSize,
                                                                                     IntPtr.Zero);
                }
            }
            finally
            {
                SafeNativeMethods.HttpTerminate(SafeNativeMethods.HTTP_INITIALIZE_CONFIG, IntPtr.Zero);
            }

            if (retVal != SafeNativeMethods.NoError && retVal != SafeNativeMethods.FileNotFound && retVal != SafeNativeMethods.ErrorInvalidParameter)
            {
                throw new WsatAdminException(WsatAdminErrorCode.UNREGISTER_HTTPS_PORT,
                                             SR.GetString(SR.ErrorUnregisterHttpsPort, retVal));
            }
        }
        static void ReserveURL(string networkURL, string securityDescriptor)
        {
            int retVal = SafeNativeMethods.NoError;

            try
            {
                retVal = SafeNativeMethods.HttpInitialize(HttpWrapper.HttpApiVersion1, SafeNativeMethods.HTTP_INITIALIZE_CONFIG, IntPtr.Zero);

                if (SafeNativeMethods.NoError == retVal)
                {
                    HttpServiceConfigUrlAclKey keyDesc = new HttpServiceConfigUrlAclKey(networkURL);
                    HttpServiceConfigUrlAclParam paramDesc = new HttpServiceConfigUrlAclParam(securityDescriptor);

                    HttpServiceConfigUrlAclSet configInformation = new HttpServiceConfigUrlAclSet();
                    configInformation.KeyDesc = keyDesc;
                    configInformation.ParamDesc = paramDesc;

                    int configInformationLength = Marshal.SizeOf(configInformation);

                    retVal = SafeNativeMethods.HttpSetServiceConfiguration_UrlAcl(IntPtr.Zero,
                        HttpServiceConfigId.HttpServiceConfigUrlAclInfo,
                        ref configInformation,
                        configInformationLength,
                        IntPtr.Zero);

                    if (SafeNativeMethods.ErrorAlreadyExists == retVal)
                    {
                        retVal = SafeNativeMethods.HttpDeleteServiceConfiguration_UrlAcl(IntPtr.Zero,
                            HttpServiceConfigId.HttpServiceConfigUrlAclInfo,
                            ref configInformation,
                            configInformationLength,
                            IntPtr.Zero);

                        if (SafeNativeMethods.NoError == retVal)
                        {
                            retVal = SafeNativeMethods.HttpSetServiceConfiguration_UrlAcl(IntPtr.Zero,
                                HttpServiceConfigId.HttpServiceConfigUrlAclInfo,
                                ref configInformation,
                                configInformationLength,
                                IntPtr.Zero);
                        }
                    }
                }
            }
            finally
            {
                SafeNativeMethods.HttpTerminate(SafeNativeMethods.HTTP_INITIALIZE_CONFIG, IntPtr.Zero);
            }

            if (SafeNativeMethods.NoError != retVal)
            {
                if (SafeNativeMethods.ErrorAlreadyExists == retVal)
                {
                    throw new WsatAdminException(WsatAdminErrorCode.REGISTER_HTTPS_PORT_ALREADYEXISTS,
                                                    SR.GetString(SR.ErrorRegisterHttpsPortAlreadyExists));
                        
                }
                else
                {
                    throw new WsatAdminException(WsatAdminErrorCode.REGISTER_HTTPS_PORT,
                                                    SR.GetString(SR.ErrorRegisterHttpsPort, retVal));
                }
            }
        }
        static void FreeURL(string networkURL, string securityDescriptor)
        {
            int retVal = SafeNativeMethods.NoError;
            try
            {
                retVal = SafeNativeMethods.HttpInitialize(HttpWrapper.HttpApiVersion1, SafeNativeMethods.HTTP_INITIALIZE_CONFIG, IntPtr.Zero);
                if (SafeNativeMethods.NoError == retVal)
                {
                    HttpServiceConfigUrlAclKey urlAclKey = new HttpServiceConfigUrlAclKey(networkURL);
                    HttpServiceConfigUrlAclParam urlAclParam = new HttpServiceConfigUrlAclParam(securityDescriptor);

                    HttpServiceConfigUrlAclSet configInformation = new HttpServiceConfigUrlAclSet();
                    configInformation.KeyDesc = urlAclKey;
                    configInformation.ParamDesc = urlAclParam;

                    int configInformationSize = Marshal.SizeOf(configInformation);

                    retVal = SafeNativeMethods.HttpDeleteServiceConfiguration_UrlAcl(IntPtr.Zero,
                        HttpServiceConfigId.HttpServiceConfigUrlAclInfo,
                        ref configInformation,
                        configInformationSize,
                        IntPtr.Zero);                    
                }
            }
            finally
            {
                SafeNativeMethods.HttpTerminate(SafeNativeMethods.HTTP_INITIALIZE_CONFIG, IntPtr.Zero);
            }

            if (retVal != SafeNativeMethods.NoError && retVal != SafeNativeMethods.FileNotFound && retVal != SafeNativeMethods.ErrorInvalidParameter)
            {
                throw new WsatAdminException(WsatAdminErrorCode.UNREGISTER_HTTPS_PORT,
                                                SR.GetString(SR.ErrorUnregisterHttpsPort, retVal));
            }
        }
        static void ReserveURL(string networkURL, string securityDescriptor)
        {
            int retVal = SafeNativeMethods.NoError;

            try
            {
                retVal = SafeNativeMethods.HttpInitialize(HttpWrapper.HttpApiVersion1, SafeNativeMethods.HTTP_INITIALIZE_CONFIG, IntPtr.Zero);

                if (SafeNativeMethods.NoError == retVal)
                {
                    HttpServiceConfigUrlAclKey   keyDesc   = new HttpServiceConfigUrlAclKey(networkURL);
                    HttpServiceConfigUrlAclParam paramDesc = new HttpServiceConfigUrlAclParam(securityDescriptor);

                    HttpServiceConfigUrlAclSet configInformation = new HttpServiceConfigUrlAclSet();
                    configInformation.KeyDesc   = keyDesc;
                    configInformation.ParamDesc = paramDesc;

                    int configInformationLength = Marshal.SizeOf(configInformation);

                    retVal = SafeNativeMethods.HttpSetServiceConfiguration_UrlAcl(IntPtr.Zero,
                                                                                  HttpServiceConfigId.HttpServiceConfigUrlAclInfo,
                                                                                  ref configInformation,
                                                                                  configInformationLength,
                                                                                  IntPtr.Zero);

                    if (SafeNativeMethods.ErrorAlreadyExists == retVal)
                    {
                        retVal = SafeNativeMethods.HttpDeleteServiceConfiguration_UrlAcl(IntPtr.Zero,
                                                                                         HttpServiceConfigId.HttpServiceConfigUrlAclInfo,
                                                                                         ref configInformation,
                                                                                         configInformationLength,
                                                                                         IntPtr.Zero);

                        if (SafeNativeMethods.NoError == retVal)
                        {
                            retVal = SafeNativeMethods.HttpSetServiceConfiguration_UrlAcl(IntPtr.Zero,
                                                                                          HttpServiceConfigId.HttpServiceConfigUrlAclInfo,
                                                                                          ref configInformation,
                                                                                          configInformationLength,
                                                                                          IntPtr.Zero);
                        }
                    }
                }
            }
            finally
            {
                SafeNativeMethods.HttpTerminate(SafeNativeMethods.HTTP_INITIALIZE_CONFIG, IntPtr.Zero);
            }

            if (SafeNativeMethods.NoError != retVal)
            {
                if (SafeNativeMethods.ErrorAlreadyExists == retVal)
                {
                    throw new WsatAdminException(WsatAdminErrorCode.REGISTER_HTTPS_PORT_ALREADYEXISTS,
                                                 SR.GetString(SR.ErrorRegisterHttpsPortAlreadyExists));
                }
                else
                {
                    throw new WsatAdminException(WsatAdminErrorCode.REGISTER_HTTPS_PORT,
                                                 SR.GetString(SR.ErrorRegisterHttpsPort, retVal));
                }
            }
        }