--- a/Implab.ServiceHost/Unity/ContainerBuilder.cs	Fri May 04 18:12:42 2018 +0300
+++ b/Implab.ServiceHost/Unity/ContainerBuilder.cs	Fri May 25 19:15:26 2018 +0300
@@ -1,8 +1,12 @@
 using System;
+using System.IO;
 using System.Reflection;
+using Implab.Diagnostics;
 using Unity;
 
 namespace Implab.ServiceHost.Unity {
+    using static Trace<ContainerBuilder>;
+
     public class ContainerBuilder {
 
         readonly TypeResolver m_resolver;
@@ -11,6 +15,8 @@
 
         readonly ContainerConfigurationSchema m_schema;
 
+        Uri m_location;
+
         public IUnityContainer Container {
             get {
                 return m_container;
@@ -97,13 +103,39 @@
 
         }
 
+        /// <summary>
+        /// Includes the confguration. Creates a new <see cref="ContainerBuilder"/>,
+        /// and loads the configuration to it. The created builder will share the
+        /// container and will have its own isolated type resolver.
+        /// </summary>
+        /// <param name="file">A path to configuration relative to the current configuration.</param>
         public void Include(string file) {
             var includeContext = new ContainerBuilder(m_container, m_schema);
-            includeContext.LoadConfig(file);
+
+            if (m_location != null) {
+                var uri =  new Uri(m_location, file);
+                includeContext.LoadConfig(uri);
+            } else {
+                includeContext.LoadConfig(file);
+            }
         }
 
+        /// <summary>
+        /// Loads a configuration from the specified local file.
+        /// </summary>
+        /// <param name="file">The path to the configuration file.</param>
         public void LoadConfig(string file) {
-            var config = m_schema.LoadFile(file);
+            Safe.ArgumentNotEmpty(file, nameof(file));
+
+            LoadConfig(new Uri(Path.GetFullPath(file)));
+        }
+
+        public void LoadConfig(Uri location) {
+            Safe.ArgumentNotNull(location, nameof(location));
+
+            m_location = location;
+
+            var config = m_schema.LoadConfig(location.ToString());
             config.Visit(this);
         }