support for .NET framework 3.5

Still have bugs

Net35/HandyControl_Net35/Shell/Standard/IApplicationDestinations.cs

@@ -0,0 +1,14 @@
+namespace Standard
+{
+    using System;
+    using System.Runtime.InteropServices;
+
+    [ComImport, Guid("12337d35-94c6-48a0-bce7-6a9c69d4d600"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown)]
+    internal interface IApplicationDestinations
+    {
+        void SetAppID([In, MarshalAs(UnmanagedType.LPWStr)] string pszAppID);
+        void RemoveDestination([MarshalAs(UnmanagedType.IUnknown)] object punk);
+        void RemoveAllDestinations();
+    }
+}
+