diff --git a/HeliosDisplayManagement.ShellExtension/HeliosDesktopMenuExtension.cs b/HeliosDisplayManagement.ShellExtension/HeliosDesktopMenuExtension.cs
index 10da1a6..7b2248a 100644
--- a/HeliosDisplayManagement.ShellExtension/HeliosDesktopMenuExtension.cs
+++ b/HeliosDisplayManagement.ShellExtension/HeliosDesktopMenuExtension.cs
@@ -10,6 +10,7 @@ namespace HeliosDisplayManagement.ShellExtension
 {
     [ComVisible(true)]
     [COMServerAssociation(AssociationType.Class, @"DesktopBackground")]
+    [Guid("2EC0C798-715B-458E-8C86-5D846F67FBA1")]
     internal class HeliosDesktopMenuExtension : SharpContextMenu
     {
         private static ToolStripMenuItem CreateProfileMenu(Profile profile)
diff --git a/HeliosDisplayManagement.ShellExtension/HeliosExecutableMenuExtension.cs b/HeliosDisplayManagement.ShellExtension/HeliosExecutableMenuExtension.cs
index 4d8b853..0112e63 100644
--- a/HeliosDisplayManagement.ShellExtension/HeliosExecutableMenuExtension.cs
+++ b/HeliosDisplayManagement.ShellExtension/HeliosExecutableMenuExtension.cs
@@ -11,6 +11,7 @@ namespace HeliosDisplayManagement.ShellExtension
 {
     [ComVisible(true)]
     [COMServerAssociation(AssociationType.ClassOfExtension, @".exe")]
+    [Guid("48B49131-2258-4694-879F-A3F96310A220")]
     internal class HeliosExecutableMenuExtension : SharpContextMenu
     {
         protected override bool CanShowMenu()
diff --git a/HeliosDisplayManagement.ShellExtension/HeliosSteamUrlMenuExtension.cs b/HeliosDisplayManagement.ShellExtension/HeliosSteamUrlMenuExtension.cs
index 3fa8627..491d906 100644
--- a/HeliosDisplayManagement.ShellExtension/HeliosSteamUrlMenuExtension.cs
+++ b/HeliosDisplayManagement.ShellExtension/HeliosSteamUrlMenuExtension.cs
@@ -12,6 +12,7 @@ namespace HeliosDisplayManagement.ShellExtension
 {
     [ComVisible(true)]
     [COMServerAssociation(AssociationType.ClassOfExtension, @".url")]
+    [Guid("E41ECFB2-3E7D-4A47-8A51-8627F1B21AE5")]
     internal class HeliosSteamUrlMenuExtension : SharpContextMenu
     {
         protected override bool CanShowMenu()