diff --git a/src/NotificationFlyout.Shared.UI/NativeMethods.json b/src/NotificationFlyout.Shared.UI/NativeMethods.json
deleted file mode 100644
index 29dbe6e..0000000
--- a/src/NotificationFlyout.Shared.UI/NativeMethods.json
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-  "$schema": "D:\\git\\CsWin32\\src\\Microsoft.Windows.CsWin32\\settings.schema.json",
-  "emitSingleFile": true
-}
\ No newline at end of file
diff --git a/src/NotificationFlyout.Wpf.UI/Extensions/ImageSourceExtensions.cs b/src/NotificationFlyout.Wpf.UI/Extensions/ImageSourceExtensions.cs
deleted file mode 100644
index d068b04..0000000
--- a/src/NotificationFlyout.Wpf.UI/Extensions/ImageSourceExtensions.cs
+++ /dev/null
@@ -1,30 +0,0 @@
-using System;
-using System.Drawing;
-using System.Windows;
-using System.Windows.Media;
-
-namespace NotificationFlyout.Wpf.UI.Extensions
-{
-    public static class ImageSourceExtensions
-    {
-        //public static Icon ConvertToIcon(this ImageSource imageSource, uint dpi)
-        //{
-        //    if (imageSource == null) return null;
-
-        //    var uri = new Uri(imageSource.ToString(), UriKind.RelativeOrAbsolute);
-
-        //    var streamResource = Application.GetResourceStream(uri);
-        //    if (streamResource == null) throw new ArgumentException(nameof(streamResource));
-
-        //    return new Icon(streamResource.Stream, new System.Drawing.Size(PInvoke.GetSystemMetricsForDpi((int)SystemMetricFlag.SM_CXICON, dpi), PInvoke.GetSystemMetricsForDpi((int)SystemMetricFlag.SM_CYICON, dpi)));
-        //}
-
-        private enum SystemMetricFlag : int
-        {
-            SM_CXICON = 11,
-            SM_CYICON = 12,
-            SM_CXSMICON = 49,
-            SM_CYSMICON = 50
-        }
-    }
-}
\ No newline at end of file
diff --git a/src/NotificationFlyout.Wpf.UI/Extensions/VisualExtensions.cs b/src/NotificationFlyout.Wpf.UI/Extensions/VisualExtensions.cs
index 79331c2..95b3410 100644
--- a/src/NotificationFlyout.Wpf.UI/Extensions/VisualExtensions.cs
+++ b/src/NotificationFlyout.Wpf.UI/Extensions/VisualExtensions.cs
@@ -22,18 +22,5 @@ namespace NotificationFlyout.Wpf.UI.Extensions
         {
             return GetDpi(visual).M11;
         }
-
-        public static bool TryGetTransformToDevice(this Visual visual, out Matrix value)
-        {
-            var presentationSource = PresentationSource.FromVisual(visual);
-            if (presentationSource != null)
-            {
-                value = presentationSource.CompositionTarget.TransformToDevice;
-                return true;
-            }
-
-            value = default;
-            return false;
-        }
     }
 }
\ No newline at end of file
diff --git a/src/NotificationFlyout.Wpf.UI/NativeMethods.json b/src/NotificationFlyout.Wpf.UI/NativeMethods.json
deleted file mode 100644
index 29dbe6e..0000000
--- a/src/NotificationFlyout.Wpf.UI/NativeMethods.json
+++ /dev/null
@@ -1,4 +0,0 @@
-{
-  "$schema": "D:\\git\\CsWin32\\src\\Microsoft.Windows.CsWin32\\settings.schema.json",
-  "emitSingleFile": true
-}
\ No newline at end of file
diff --git a/src/NotificationFlyout.Wpf.UI/NotificationFlyout.Wpf.UI.csproj b/src/NotificationFlyout.Wpf.UI/NotificationFlyout.Wpf.UI.csproj
index dcfa2a5..b8a08a8 100644
--- a/src/NotificationFlyout.Wpf.UI/NotificationFlyout.Wpf.UI.csproj
+++ b/src/NotificationFlyout.Wpf.UI/NotificationFlyout.Wpf.UI.csproj
@@ -11,14 +11,6 @@
     <Version>1.0.0</Version>
   </PropertyGroup>
 
-  <ItemGroup>
-    <None Remove="NativeMethods.json" />
-  </ItemGroup>
-
-  <ItemGroup>
-    <AdditionalFiles Include="NativeMethods.json" />
-  </ItemGroup>
-
   <ItemGroup>
     <ProjectReference Include="..\NotificationFlyout.Shared.UI\NotificationFlyout.Shared.UI.csproj" />
   </ItemGroup>