diff --git a/NzbDrone.Common.Test/EventingTests/MessageAggregatorCommandTests.cs b/NzbDrone.Common.Test/EventingTests/MessageAggregatorCommandTests.cs
index 1e450ae21..38ce954f3 100644
--- a/NzbDrone.Common.Test/EventingTests/MessageAggregatorCommandTests.cs
+++ b/NzbDrone.Common.Test/EventingTests/MessageAggregatorCommandTests.cs
@@ -76,17 +76,23 @@ namespace NzbDrone.Common.Test.EventingTests
 
     public class CommandA : ICommand
     {
+        public String CommandId { get; set; }
 // ReSharper disable UnusedParameter.Local
         public CommandA(int id = 0)
 // ReSharper restore UnusedParameter.Local
         {
-
+            CommandId = HashUtil.GenerateCommandId();
         }
     }
 
     public class CommandB : ICommand
     {
+        public String CommandId { get; set; }
 
+        public CommandB()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
     }
 
 }
\ No newline at end of file
diff --git a/NzbDrone.Common/HashUtil.cs b/NzbDrone.Common/HashUtil.cs
index 0a127ee63..5777cc724 100644
--- a/NzbDrone.Common/HashUtil.cs
+++ b/NzbDrone.Common/HashUtil.cs
@@ -34,31 +34,9 @@ namespace NzbDrone.Common
             return String.Format("{0:x8}", mCrc);
         }
 
-        public static string GenerateUserId()
+        public static string GenerateCommandId()
         {
-            return GenerateId("u");
-        }
-
-        public static string GenerateAppId()
-        {
-            return GenerateId("a");
-        }
-
-        public static string GenerateApiToken()
-        {
-            return Guid.NewGuid().ToString().Replace("-", "");
-        }
-
-        public static string GenerateSecurityToken(int length)
-        {
-            var byteSize = (length / 4) * 3;
-
-            var linkBytes = new byte[byteSize];
-            var rngCrypto = new RNGCryptoServiceProvider();
-            rngCrypto.GetBytes(linkBytes);
-            var base64String = Convert.ToBase64String(linkBytes);
-
-            return base64String;
+            return GenerateId("c");
         }
 
         private static string GenerateId(string prefix)
diff --git a/NzbDrone.Common/Messaging/ICommand.cs b/NzbDrone.Common/Messaging/ICommand.cs
index d9f8049ba..005a84a68 100644
--- a/NzbDrone.Common/Messaging/ICommand.cs
+++ b/NzbDrone.Common/Messaging/ICommand.cs
@@ -1,6 +1,9 @@
+using System;
+
 namespace NzbDrone.Common.Messaging
 {
     public interface ICommand : IMessage
     {
+        String CommandId { get; }
     }
 }
\ No newline at end of file
diff --git a/NzbDrone.Common/Messaging/TestCommand.cs b/NzbDrone.Common/Messaging/TestCommand.cs
index 1a54d5764..3ede823e7 100644
--- a/NzbDrone.Common/Messaging/TestCommand.cs
+++ b/NzbDrone.Common/Messaging/TestCommand.cs
@@ -1,13 +1,15 @@
-namespace NzbDrone.Common.Messaging
+using System;
+
+namespace NzbDrone.Common.Messaging
 {
     public class TestCommand : ICommand
     {
+        public int Duration { get; set; }
+        public String CommandId { get; set; }
+        
         public TestCommand()
         {
             Duration = 4000;
         }
-
-        public int Duration { get; set; }
-
     }
 }
\ No newline at end of file
diff --git a/NzbDrone.Core/DataAugmentation/Scene/UpdateSceneMappingCommand.cs b/NzbDrone.Core/DataAugmentation/Scene/UpdateSceneMappingCommand.cs
index 68356ab6e..965121626 100644
--- a/NzbDrone.Core/DataAugmentation/Scene/UpdateSceneMappingCommand.cs
+++ b/NzbDrone.Core/DataAugmentation/Scene/UpdateSceneMappingCommand.cs
@@ -1,8 +1,16 @@
+using System;
+using NzbDrone.Common;
 using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.DataAugmentation.Scene
 {
     public class UpdateSceneMappingCommand : ICommand
     {
+        public String CommandId { get; set; }
+
+        public UpdateSceneMappingCommand()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
     }
 }
\ No newline at end of file
diff --git a/NzbDrone.Core/IndexerSearch/EpisodeSearchCommand.cs b/NzbDrone.Core/IndexerSearch/EpisodeSearchCommand.cs
index b0dce2fd1..08d47672d 100644
--- a/NzbDrone.Core/IndexerSearch/EpisodeSearchCommand.cs
+++ b/NzbDrone.Core/IndexerSearch/EpisodeSearchCommand.cs
@@ -1,9 +1,17 @@
-using NzbDrone.Common.Messaging;
+using System;
+using NzbDrone.Common;
+using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.IndexerSearch
 {
     public class EpisodeSearchCommand : ICommand
     {
+        public String CommandId { get; set; }
         public int EpisodeId { get; set; }
+        
+        public EpisodeSearchCommand()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
     }
 }
\ No newline at end of file
diff --git a/NzbDrone.Core/IndexerSearch/SeasonSearchCommand.cs b/NzbDrone.Core/IndexerSearch/SeasonSearchCommand.cs
index cf9a8ba3e..a27d98306 100644
--- a/NzbDrone.Core/IndexerSearch/SeasonSearchCommand.cs
+++ b/NzbDrone.Core/IndexerSearch/SeasonSearchCommand.cs
@@ -1,10 +1,18 @@
-using NzbDrone.Common.Messaging;
+using System;
+using NzbDrone.Common;
+using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.IndexerSearch
 {
     public class SeasonSearchCommand : ICommand
     {
+        public String CommandId { get; set; }
         public int SeriesId { get; set; }
         public int SeasonNumber { get; set; }
+
+        public SeasonSearchCommand()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
     }
 }
\ No newline at end of file
diff --git a/NzbDrone.Core/IndexerSearch/SeriesSearchCommand.cs b/NzbDrone.Core/IndexerSearch/SeriesSearchCommand.cs
index 4e309fde8..e9ade1e45 100644
--- a/NzbDrone.Core/IndexerSearch/SeriesSearchCommand.cs
+++ b/NzbDrone.Core/IndexerSearch/SeriesSearchCommand.cs
@@ -1,9 +1,17 @@
-using NzbDrone.Common.Messaging;
+using System;
+using NzbDrone.Common;
+using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.IndexerSearch
 {
     public class SeriesSearchCommand : ICommand
     {
+        public String CommandId { get; set; }
         public int SeriesId { get; set; }
+
+        public SeriesSearchCommand()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
     }
 }
\ No newline at end of file
diff --git a/NzbDrone.Core/Indexers/RssSyncCommand.cs b/NzbDrone.Core/Indexers/RssSyncCommand.cs
index 04a7a123b..467a7b030 100644
--- a/NzbDrone.Core/Indexers/RssSyncCommand.cs
+++ b/NzbDrone.Core/Indexers/RssSyncCommand.cs
@@ -1,9 +1,16 @@
-using NzbDrone.Common.Messaging;
+using System;
+using NzbDrone.Common;
+using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.Indexers
 {
     public class RssSyncCommand : ICommand
     {
+        public String CommandId { get; set; }
 
+        public RssSyncCommand()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
     }
 }
\ No newline at end of file
diff --git a/NzbDrone.Core/Instrumentation/Commands/ClearLogCommand.cs b/NzbDrone.Core/Instrumentation/Commands/ClearLogCommand.cs
index 19776e76d..34e2812ba 100644
--- a/NzbDrone.Core/Instrumentation/Commands/ClearLogCommand.cs
+++ b/NzbDrone.Core/Instrumentation/Commands/ClearLogCommand.cs
@@ -1,8 +1,16 @@
-using NzbDrone.Common.Messaging;
+using System;
+using NzbDrone.Common;
+using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.Instrumentation.Commands
 {
     public class ClearLogCommand : ICommand
     {
+        public String CommandId { get; set; }
+
+        public ClearLogCommand()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
     }
 }
\ No newline at end of file
diff --git a/NzbDrone.Core/Instrumentation/Commands/DeleteLogFilesCommand.cs b/NzbDrone.Core/Instrumentation/Commands/DeleteLogFilesCommand.cs
index 5d3228afb..ea16c67d0 100644
--- a/NzbDrone.Core/Instrumentation/Commands/DeleteLogFilesCommand.cs
+++ b/NzbDrone.Core/Instrumentation/Commands/DeleteLogFilesCommand.cs
@@ -1,8 +1,16 @@
-using NzbDrone.Common.Messaging;
+using System;
+using NzbDrone.Common;
+using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.Instrumentation.Commands
 {
     public class DeleteLogFilesCommand : ICommand
     {
+        public String CommandId { get; set; }
+
+        public DeleteLogFilesCommand()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
     }
 }
\ No newline at end of file
diff --git a/NzbDrone.Core/Instrumentation/Commands/TrimLogCommand.cs b/NzbDrone.Core/Instrumentation/Commands/TrimLogCommand.cs
index c00b27020..8221814ba 100644
--- a/NzbDrone.Core/Instrumentation/Commands/TrimLogCommand.cs
+++ b/NzbDrone.Core/Instrumentation/Commands/TrimLogCommand.cs
@@ -1,8 +1,16 @@
-using NzbDrone.Common.Messaging;
+using System;
+using NzbDrone.Common;
+using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.Instrumentation.Commands
 {
     public class TrimLogCommand : ICommand
     {
+        public String CommandId { get; set; }
+
+        public TrimLogCommand()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
     }
 }
\ No newline at end of file
diff --git a/NzbDrone.Core/MediaFiles/Commands/CleanMediaFileDb.cs b/NzbDrone.Core/MediaFiles/Commands/CleanMediaFileDb.cs
index b873dcc5f..42822aae6 100644
--- a/NzbDrone.Core/MediaFiles/Commands/CleanMediaFileDb.cs
+++ b/NzbDrone.Core/MediaFiles/Commands/CleanMediaFileDb.cs
@@ -1,13 +1,22 @@
+using System;
+using NzbDrone.Common;
 using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.MediaFiles.Commands
 {
     public class CleanMediaFileDb : ICommand
     {
+        public String CommandId { get; set; }
         public int SeriesId { get; private set; }
 
+        public CleanMediaFileDb()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
+
         public CleanMediaFileDb(int seriesId)
         {
+            CommandId = HashUtil.GenerateCommandId();
             SeriesId = seriesId;
         }
     }
diff --git a/NzbDrone.Core/MediaFiles/Commands/CleanUpRecycleBinCommand.cs b/NzbDrone.Core/MediaFiles/Commands/CleanUpRecycleBinCommand.cs
index b2d16f231..66cbc07a9 100644
--- a/NzbDrone.Core/MediaFiles/Commands/CleanUpRecycleBinCommand.cs
+++ b/NzbDrone.Core/MediaFiles/Commands/CleanUpRecycleBinCommand.cs
@@ -1,8 +1,16 @@
+using System;
+using NzbDrone.Common;
 using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.MediaFiles.Commands
 {
     public class CleanUpRecycleBinCommand : ICommand
     {
+        public String CommandId { get; set; }
+
+        public CleanUpRecycleBinCommand()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
     }
 }
\ No newline at end of file
diff --git a/NzbDrone.Core/MediaFiles/Commands/DownloadedEpisodesScanCommand.cs b/NzbDrone.Core/MediaFiles/Commands/DownloadedEpisodesScanCommand.cs
index 0f03f2083..b0e52126a 100644
--- a/NzbDrone.Core/MediaFiles/Commands/DownloadedEpisodesScanCommand.cs
+++ b/NzbDrone.Core/MediaFiles/Commands/DownloadedEpisodesScanCommand.cs
@@ -1,11 +1,16 @@
+using System;
+using NzbDrone.Common;
 using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.MediaFiles.Commands
 {
     public class DownloadedEpisodesScanCommand : ICommand
     {
+        public String CommandId { get; set; }
+
         public DownloadedEpisodesScanCommand()
         {
+            CommandId = HashUtil.GenerateCommandId();
         }
     }
 }
\ No newline at end of file
diff --git a/NzbDrone.Core/MediaFiles/Commands/RenameSeasonCommand.cs b/NzbDrone.Core/MediaFiles/Commands/RenameSeasonCommand.cs
index 723c5d74b..894a1eb86 100644
--- a/NzbDrone.Core/MediaFiles/Commands/RenameSeasonCommand.cs
+++ b/NzbDrone.Core/MediaFiles/Commands/RenameSeasonCommand.cs
@@ -1,3 +1,5 @@
+using System;
+using NzbDrone.Common;
 using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.MediaFiles.Commands
@@ -7,8 +9,16 @@ namespace NzbDrone.Core.MediaFiles.Commands
         public int SeriesId { get; private set; }
         public int SeasonNumber { get; private set; }
 
+        public String CommandId { get; set; }
+
+        public RenameSeasonCommand()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
+
         public RenameSeasonCommand(int seriesId, int seasonNumber)
         {
+            CommandId = HashUtil.GenerateCommandId();
             SeriesId = seriesId;
             SeasonNumber = seasonNumber;
         }
diff --git a/NzbDrone.Core/MediaFiles/Commands/RenameSeriesCommand.cs b/NzbDrone.Core/MediaFiles/Commands/RenameSeriesCommand.cs
index 7716c43c0..954d92ff1 100644
--- a/NzbDrone.Core/MediaFiles/Commands/RenameSeriesCommand.cs
+++ b/NzbDrone.Core/MediaFiles/Commands/RenameSeriesCommand.cs
@@ -1,13 +1,22 @@
+using System;
+using NzbDrone.Common;
 using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.MediaFiles.Commands
 {
     public class RenameSeriesCommand : ICommand
     {
+        public String CommandId { get; set; }
         public int SeriesId { get; private set; }
 
+        public RenameSeriesCommand()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
+
         public RenameSeriesCommand(int seriesId)
         {
+            CommandId = HashUtil.GenerateCommandId();
             SeriesId = seriesId;
         }
     }
diff --git a/NzbDrone.Core/Notifications/Email/TestEmailCommand.cs b/NzbDrone.Core/Notifications/Email/TestEmailCommand.cs
index 258884788..4ee1133ed 100644
--- a/NzbDrone.Core/Notifications/Email/TestEmailCommand.cs
+++ b/NzbDrone.Core/Notifications/Email/TestEmailCommand.cs
@@ -1,9 +1,12 @@
-using NzbDrone.Common.Messaging;
+using System;
+using NzbDrone.Common;
+using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.Notifications.Email
 {
     public class TestEmailCommand : ICommand
     {
+        public String CommandId { get; set; }
         public string Server { get; set; }
         public int Port { get; set; }
         public bool Ssl { get; set; }
@@ -11,5 +14,10 @@ namespace NzbDrone.Core.Notifications.Email
         public string Password { get; set; }
         public string From { get; set; }
         public string To { get; set; }
+        
+        public TestEmailCommand()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
     }
 }
diff --git a/NzbDrone.Core/Notifications/Growl/TestGrowlCommand.cs b/NzbDrone.Core/Notifications/Growl/TestGrowlCommand.cs
index 35890fff9..71453e252 100644
--- a/NzbDrone.Core/Notifications/Growl/TestGrowlCommand.cs
+++ b/NzbDrone.Core/Notifications/Growl/TestGrowlCommand.cs
@@ -1,11 +1,19 @@
-using NzbDrone.Common.Messaging;
+using System;
+using NzbDrone.Common;
+using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.Notifications.Growl
 {
     public class TestGrowlCommand : ICommand
     {
+        public String CommandId { get; set; }
         public string Host { get; set; }
         public int Port { get; set; }
         public string Password { get; set; }
+
+        public TestGrowlCommand()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
     }
 }
diff --git a/NzbDrone.Core/Notifications/Plex/TestPlexClientCommand.cs b/NzbDrone.Core/Notifications/Plex/TestPlexClientCommand.cs
index 6df162ab4..bf456754e 100644
--- a/NzbDrone.Core/Notifications/Plex/TestPlexClientCommand.cs
+++ b/NzbDrone.Core/Notifications/Plex/TestPlexClientCommand.cs
@@ -1,12 +1,20 @@
-using NzbDrone.Common.Messaging;
+using System;
+using NzbDrone.Common;
+using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.Notifications.Plex
 {
     public class TestPlexClientCommand : ICommand
     {
+        public String CommandId { get; set; }
         public string Host { get; set; }
         public int Port { get; set; }
         public string Username { get; set; }
         public string Password { get; set; }
+        
+        public TestPlexClientCommand()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
     }
 }
diff --git a/NzbDrone.Core/Notifications/Plex/TestPlexServerCommand.cs b/NzbDrone.Core/Notifications/Plex/TestPlexServerCommand.cs
index 49089afea..3921890bb 100644
--- a/NzbDrone.Core/Notifications/Plex/TestPlexServerCommand.cs
+++ b/NzbDrone.Core/Notifications/Plex/TestPlexServerCommand.cs
@@ -1,10 +1,18 @@
-using NzbDrone.Common.Messaging;
+using System;
+using NzbDrone.Common;
+using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.Notifications.Plex
 {
     public class TestPlexServerCommand : ICommand
     {
+        public String CommandId { get; set; }
         public string Host { get; set; }
         public int Port { get; set; }
+
+        public TestPlexServerCommand()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
     }
 }
diff --git a/NzbDrone.Core/Notifications/Prowl/TestProwlCommand.cs b/NzbDrone.Core/Notifications/Prowl/TestProwlCommand.cs
index e58bf5a9c..e30fa4c6b 100644
--- a/NzbDrone.Core/Notifications/Prowl/TestProwlCommand.cs
+++ b/NzbDrone.Core/Notifications/Prowl/TestProwlCommand.cs
@@ -1,10 +1,18 @@
-using NzbDrone.Common.Messaging;
+using System;
+using NzbDrone.Common;
+using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.Notifications.Prowl
 {
     public class TestProwlCommand : ICommand
     {
+        public String CommandId { get; set; }
         public string ApiKey { get; set; }
         public int Priority { get; set; }
+
+        public TestProwlCommand()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
     }
 }
diff --git a/NzbDrone.Core/Notifications/Pushover/TestPushoverCommand.cs b/NzbDrone.Core/Notifications/Pushover/TestPushoverCommand.cs
index 31bc034f9..55c6aad8f 100644
--- a/NzbDrone.Core/Notifications/Pushover/TestPushoverCommand.cs
+++ b/NzbDrone.Core/Notifications/Pushover/TestPushoverCommand.cs
@@ -1,10 +1,18 @@
-using NzbDrone.Common.Messaging;
+using System;
+using NzbDrone.Common;
+using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.Notifications.Pushover
 {
     public class TestPushoverCommand : ICommand
     {
+        public String CommandId { get; set; }
         public string UserKey { get; set; }
         public int Priority { get; set; }
+
+        public TestPushoverCommand()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
     }
 }
diff --git a/NzbDrone.Core/Notifications/Xbmc/TestXbmcCommand.cs b/NzbDrone.Core/Notifications/Xbmc/TestXbmcCommand.cs
index 56eb75ee8..17b9d1f72 100644
--- a/NzbDrone.Core/Notifications/Xbmc/TestXbmcCommand.cs
+++ b/NzbDrone.Core/Notifications/Xbmc/TestXbmcCommand.cs
@@ -1,13 +1,21 @@
-using NzbDrone.Common.Messaging;
+using System;
+using NzbDrone.Common;
+using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.Notifications.Xbmc
 {
     public class TestXbmcCommand : ICommand
     {
+        public String CommandId { get; set; }
         public string Host { get; set; }
         public int Port { get; set; }
         public string Username { get; set; }
         public string Password { get; set; }
         public int DisplayTime { get; set; }
+
+        public TestXbmcCommand()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
     }
 }
diff --git a/NzbDrone.Core/Providers/UpdateXemMappingsCommand.cs b/NzbDrone.Core/Providers/UpdateXemMappingsCommand.cs
index da4b4b53f..0660cff7b 100644
--- a/NzbDrone.Core/Providers/UpdateXemMappingsCommand.cs
+++ b/NzbDrone.Core/Providers/UpdateXemMappingsCommand.cs
@@ -1,13 +1,18 @@
-using NzbDrone.Common.Messaging;
+using System;
+using NzbDrone.Common;
+using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.Providers
 {
     public class UpdateXemMappingsCommand : ICommand
     {
+        public String CommandId { get; set; }
         public int? SeriesId { get; private set; }
 
         public UpdateXemMappingsCommand(int? seriesId)
         {
+            CommandId = HashUtil.GenerateCommandId();
+
             SeriesId = seriesId;
         }
     }
diff --git a/NzbDrone.Core/Tv/Commands/RefreshSeriesCommand.cs b/NzbDrone.Core/Tv/Commands/RefreshSeriesCommand.cs
index f38af963c..941ce42dd 100644
--- a/NzbDrone.Core/Tv/Commands/RefreshSeriesCommand.cs
+++ b/NzbDrone.Core/Tv/Commands/RefreshSeriesCommand.cs
@@ -1,13 +1,23 @@
-using NzbDrone.Common.Messaging;
+using System;
+using NzbDrone.Common;
+using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.Tv.Commands
 {
     public class RefreshSeriesCommand : ICommand
     {
+        public String CommandId { get; set; }
         public int? SeriesId { get; private set; }
 
+        public RefreshSeriesCommand()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
+
         public RefreshSeriesCommand(int? seriesId)
         {
+            CommandId = HashUtil.GenerateCommandId();
+
             SeriesId = seriesId;
         }
     }
diff --git a/NzbDrone.Core/Update/Commands/ApplicationUpdateCommand.cs b/NzbDrone.Core/Update/Commands/ApplicationUpdateCommand.cs
index bbbf6a1f3..e7cfa0a9d 100644
--- a/NzbDrone.Core/Update/Commands/ApplicationUpdateCommand.cs
+++ b/NzbDrone.Core/Update/Commands/ApplicationUpdateCommand.cs
@@ -1,8 +1,16 @@
-using NzbDrone.Common.Messaging;
+using System;
+using NzbDrone.Common;
+using NzbDrone.Common.Messaging;
 
 namespace NzbDrone.Core.Update.Commands
 {
     public class ApplicationUpdateCommand : ICommand
     {
+        public String CommandId { get; set; }
+
+        public ApplicationUpdateCommand()
+        {
+            CommandId = HashUtil.GenerateCommandId();
+        }
     }
 }
\ No newline at end of file