diff --git a/src/ImageProcessor.Web/Configuration/ImageProcessorConfiguration.cs b/src/ImageProcessor.Web/Configuration/ImageProcessorConfiguration.cs
index a562df7d4..46afcbc9c 100644
--- a/src/ImageProcessor.Web/Configuration/ImageProcessorConfiguration.cs
+++ b/src/ImageProcessor.Web/Configuration/ImageProcessorConfiguration.cs
@@ -281,7 +281,7 @@ namespace ImageProcessor.Web.Configuration
 
             return settings;
         }
-#endregion
+        #endregion
 
         #region ImageServices
         /// <summary>
@@ -345,7 +345,19 @@ namespace ImageProcessor.Web.Configuration
                     throw new TypeLoadException("Couldn't load IImageService: " + config.Type);
                 }
 
-                this.GraphicsProcessors.Add(Activator.CreateInstance(type) as IWebGraphicsProcessor);
+                IImageService imageService = Activator.CreateInstance(type) as IImageService;
+                if (!string.IsNullOrWhiteSpace(config.Prefix))
+                {
+                    if (!string.IsNullOrWhiteSpace(config.Prefix))
+                    {
+                        if (imageService != null)
+                        {
+                            imageService.Prefix = config.Prefix;
+                        }
+                    }
+                }
+
+                this.ImageServices.Add(imageService);
             }
 
             // Add the available settings.
diff --git a/src/ImageProcessor.Web/Configuration/ImageSecuritySection.cs b/src/ImageProcessor.Web/Configuration/ImageSecuritySection.cs
index 60fa113fa..dd47c9ac5 100644
--- a/src/ImageProcessor.Web/Configuration/ImageSecuritySection.cs
+++ b/src/ImageProcessor.Web/Configuration/ImageSecuritySection.cs
@@ -68,9 +68,9 @@ namespace ImageProcessor.Web.Configuration
         public class ServiceElement : ConfigurationElement
         {
             /// <summary>
-            /// Gets or sets the name of the plugin file.
+            /// Gets or sets the name of the service.
             /// </summary>
-            /// <value>The name of the plugin.</value>
+            /// <value>The name of the service.</value>
             [ConfigurationProperty("name", DefaultValue = "", IsRequired = true)]
             public string Name
             {
@@ -80,9 +80,21 @@ namespace ImageProcessor.Web.Configuration
             }
 
             /// <summary>
-            /// Gets or sets the type of the service file.
+            /// Gets or sets the prefix of the service.
             /// </summary>
-            /// <value>The full Type definition of the plugin</value>
+            /// <value>The prefix of the service.</value>
+            [ConfigurationProperty("prefix", DefaultValue = "", IsRequired = false)]
+            public string Prefix
+            {
+                get { return (string)this["prefix"]; }
+
+                set { this["prefix"] = value; }
+            }
+
+            /// <summary>
+            /// Gets or sets the type of the service.
+            /// </summary>
+            /// <value>The full Type definition of the service</value>
             [ConfigurationProperty("type", DefaultValue = "", IsRequired = true)]
             public string Type
             {
diff --git a/src/ImageProcessor.Web/Configuration/Resources/security.config b/src/ImageProcessor.Web/Configuration/Resources/security.config
index 1e415c0d3..5326f270f 100644
--- a/src/ImageProcessor.Web/Configuration/Resources/security.config
+++ b/src/ImageProcessor.Web/Configuration/Resources/security.config
@@ -1,7 +1,7 @@
 <security>
   <services autoLoadServices="true">
     <service name="LocalFileImageService" type="ImageProcessor.Web.Services.LocalFileImageService, ImageProcessor.Web"/>
-    <service name="RemoteImageService" type="ImageProcessor.Web.Services.RemoteImageService, ImageProcessor.Web">
+    <service prefix="remote.axd" name="RemoteImageService" type="ImageProcessor.Web.Services.RemoteImageService, ImageProcessor.Web">
       <settings>
         <setting key="MaxBytes" value="4194304"/>
         <setting key="Timeout" value="3000"/>
diff --git a/src/ImageProcessor.Web/HttpModules/ImageProcessingModule.cs b/src/ImageProcessor.Web/HttpModules/ImageProcessingModule.cs
index 9927e3330..d918e0ffe 100644
--- a/src/ImageProcessor.Web/HttpModules/ImageProcessingModule.cs
+++ b/src/ImageProcessor.Web/HttpModules/ImageProcessingModule.cs
@@ -530,7 +530,7 @@ namespace ImageProcessor.Web.HttpModules
             string path = request.Path;
             foreach (IImageService service in services)
             {
-                string key = service.Key;
+                string key = service.Prefix;
                 if (!string.IsNullOrWhiteSpace(key) && path.EndsWith(key, StringComparison.InvariantCultureIgnoreCase))
                 {
                     imageService = service;
@@ -545,7 +545,7 @@ namespace ImageProcessor.Web.HttpModules
             // Return the file based service
             if (ImageHelpers.IsValidImageExtension(path))
             {
-                return services.FirstOrDefault(s => string.IsNullOrWhiteSpace(s.Key));
+                return services.FirstOrDefault(s => string.IsNullOrWhiteSpace(s.Prefix));
             }
 
             return null;
diff --git a/src/ImageProcessor.Web/Services/IImageService.cs b/src/ImageProcessor.Web/Services/IImageService.cs
index 23746cea0..3488f30cf 100644
--- a/src/ImageProcessor.Web/Services/IImageService.cs
+++ b/src/ImageProcessor.Web/Services/IImageService.cs
@@ -20,12 +20,12 @@ namespace ImageProcessor.Web.Services
     public interface IImageService
     {
         /// <summary>
-        /// Gets the key for the given implementation.
+        /// Gets or sets the prefix for the given implementation.
         /// <remarks>
         /// This value is used as a prefix for any image requests that should use this service.
         /// </remarks>
         /// </summary>
-        string Key { get; }
+        string Prefix { get; set; }
 
         /// <summary>
         /// Gets a value indicating whether the image service requests files from
diff --git a/src/ImageProcessor.Web/Services/LocalFileImageService.cs b/src/ImageProcessor.Web/Services/LocalFileImageService.cs
index 3a95d558a..c9726b2eb 100644
--- a/src/ImageProcessor.Web/Services/LocalFileImageService.cs
+++ b/src/ImageProcessor.Web/Services/LocalFileImageService.cs
@@ -22,16 +22,26 @@ namespace ImageProcessor.Web.Services
     public class LocalFileImageService : IImageService
     {
         /// <summary>
-        /// Gets the key for the given implementation.
+        /// The prefix for the given implementation.
+        /// </summary>
+        private string prefix = string.Empty;
+
+        /// <summary>
+        /// Gets or sets the prefix for the given implementation.
         /// <remarks>
         /// This value is used as a prefix for any image requests that should use this service.
         /// </remarks>
         /// </summary>
-        public string Key
+        public string Prefix
         {
             get
             {
-                return string.Empty;
+                return this.prefix;
+            }
+
+            set
+            {
+                this.prefix = value;
             }
         }
 
diff --git a/src/ImageProcessor.Web/Services/RemoteImageService.cs b/src/ImageProcessor.Web/Services/RemoteImageService.cs
index fadf68c23..acebdf5d0 100644
--- a/src/ImageProcessor.Web/Services/RemoteImageService.cs
+++ b/src/ImageProcessor.Web/Services/RemoteImageService.cs
@@ -24,6 +24,11 @@ namespace ImageProcessor.Web.Services
     /// </summary>
     public class RemoteImageService : IImageService
     {
+        /// <summary>
+        /// The prefix for the given implementation.
+        /// </summary>
+        private string prefix = "remote.axd";
+
         /// <summary>
         /// Initializes a new instance of the <see cref="RemoteImageService"/> class.
         /// </summary>
@@ -39,16 +44,21 @@ namespace ImageProcessor.Web.Services
         }
 
         /// <summary>
-        /// Gets the key for the given implementation.
+        /// Gets or sets the prefix for the given implementation.
         /// <remarks>
         /// This value is used as a prefix for any image requests that should use this service.
         /// </remarks>
         /// </summary>
-        public string Key
+        public string Prefix
         {
             get
             {
-                return "remote.axd";
+                return this.prefix;
+            }
+
+            set
+            {
+                this.prefix = value;
             }
         }
 
diff --git a/src/TestWebsites/MVC/config/imageprocessor/security.config b/src/TestWebsites/MVC/config/imageprocessor/security.config
index cd54dde6a..b49f89854 100644
--- a/src/TestWebsites/MVC/config/imageprocessor/security.config
+++ b/src/TestWebsites/MVC/config/imageprocessor/security.config
@@ -2,7 +2,7 @@
 <security>
   <services autoLoadServices="true">
     <service name="LocalFileImageService" type="ImageProcessor.Web.Services.LocalFileImageService, ImageProcessor.Web"/>
-    <service name="RemoteImageService" type="ImageProcessor.Web.Services.RemoteImageService, ImageProcessor.Web">
+    <service prefix="remote.axd" name="RemoteImageService" type="ImageProcessor.Web.Services.RemoteImageService, ImageProcessor.Web">
       <settings>
         <setting key="MaxBytes" value="4194304"/>
         <setting key="Timeout" value="30000"/>