public class Default : IHttpHandler
    {

        public bool IsReusable
        {
            get { return true; }
        }

        public void ProcessRequest(HttpContext context)
        {
            var request = context.Request;
            var response = context.Response;

            string connectionString = System.Configuration.ConfigurationManager.ConnectionStrings["GneralConnectionStering"].ConnectionString;
            SqlConnection connection = new SqlConnection(connectionString);
            SqlCommand command = new SqlCommand("[WEB].[SP_HttpRequest]", connection);
            command.CommandType = System.Data.CommandType.StoredProcedure;

            // ***** Инициализация параметров ***************************************************
            
            command.Parameters.AddWithValue("@Browser", request.Browser.Browser ?? string.Empty);
            command.Parameters.AddWithValue("@ContentEncoding", request.ContentEncoding.EncodingName ?? string.Empty);
            command.Parameters.AddWithValue("@ContentType", request.ContentType ?? string.Empty);            
            command.Parameters.AddWithValue("@HttpMethod", request.HttpMethod ?? string.Empty);
            command.Parameters.AddWithValue("@IsSecureConnection", request.IsSecureConnection);
            command.Parameters.AddWithValue("@QueryString", request.QueryString.ToString() ?? string.Empty);
            command.Parameters.AddWithValue("@RawUrl", request.RawUrl ?? string.Empty);

            Guid sessionID = Guid.Empty;
            if (request.Cookies["SessionID"] != null)
            {
                try { sessionID = Guid.Parse(request.Cookies["SessionID"].Value); }
                catch { sessionID = Guid.Empty; }
            }
            else
            {
                response.Cookies.Add(new HttpCookie("SessionID"));
            }

            command.Parameters.Add("@SessionID", System.Data.SqlDbType.UniqueIdentifier);
            command.Parameters["@SessionID"].Direction = System.Data.ParameterDirection.InputOutput;
            command.Parameters["@SessionID"].Value = sessionID;

            command.Parameters.AddWithValue("@Url",  request.Url.AbsoluteUri ?? string.Empty);

            string urlReferrer = string.Empty;
            if (request.UrlReferrer != null) urlReferrer = request.UrlReferrer.AbsoluteUri;
            command.Parameters.AddWithValue("@UrlReferrer", urlReferrer);

			command.Parameters.AddWithValue("@UserAgent",  request.UserAgent);
			command.Parameters.AddWithValue("@UserHostAddress",  request.UserHostAddress);
			command.Parameters.AddWithValue("@UserHostName",  request.UserHostName);
			command.Parameters.AddWithValue("@UserLanguages",  String.Join(", ", request.UserLanguages));
            
            //
            // Бла-бла-бла
            //  

            command.Parameters.Add("@TextResult", System.Data.SqlDbType.NVarChar, -1);
            command.Parameters["@TextResult"].Direction = System.Data.ParameterDirection.Output;
           
           
            connection.Open();
            command.ExecuteNonQuery();
            connection.Close();

            response.Cookies["SessionID"].Value = command.Parameters["@SessionID"].Value.ToString();
            response.Write(command.Parameters["@TextResult"].Value.ToString());
            //
            // Бла-бла-бла
            //  
        }
    }

<system.web>
      <httpHandlers>
        <add verb="*" path="/"   type="WEB.Default"/>
        <add verb="*" path="/*"   type="WEB.Default"/>
        <add verb="*" path="/*/*"   type="WEB.Default"/>
      </httpHandlers>
    </system.web>
    <system.webServer>
      <handlers>
        <add verb="*" path="/"  name="Default" type="WEB.Default"/>
        <add verb="*" path="/*"  name="Default" type="WEB.Default"/>
        <add verb="*" path="/*/*"  name="Default" type="WEB.Default"/>
      </handlers>
    </system.webServer>