support for .NET framework 3.5

Still have bugs

Net35/HandyControl_Net35/Shell/JumpTask.cs

@@ -0,0 +1,23 @@
+namespace Microsoft.Windows.Shell
+{
+    using System;
+    using System.Runtime.CompilerServices;
+
+    public class JumpTask : JumpItem
+    {
+        public string ApplicationPath { get; set; }
+
+        public string Arguments { get; set; }
+
+        public string Description { get; set; }
+
+        public int IconResourceIndex { get; set; }
+
+        public string IconResourcePath { get; set; }
+
+        public string Title { get; set; }
+
+        public string WorkingDirectory { get; set; }
+    }
+}
+