C#

[WebMethod(Description = "Creates a file. First string in the array is the path and second string is the data.")]
public string Update(string[] html)
{
    if (html.Length > 0)
    {
        try
        {
            string path = String.Format(@"{0}", html[0]);
            using (FileStream fs = new FileStream(path, FileMode.Create, FileAccess.Write))
            {
                using (StreamWriter sw = new StreamWriter(fs))
                {
                    sw.WriteLine(html[1], Encoding.ASCII);
                    sw.Close();
                }
                fs.Close();
                return "Updated situation report.";
            }
        }
        catch (Exception ex)
        {
            return "Error: " + ex.Message;
        }
    }
    else
        return "Incorrect parameter lengths.";
}

int IContextMenu.QueryContextMenu(uint hmenu,
              uint iMenu,
              int idCmdFirst,
              int idCmdLast,
              uint uFlags)
            {

                //Clicked file
                StringBuilder sb = new StringBuilder(1024);
                DllImports.DragQueryFile(m_hDrop, 0, sb, sb.Capacity + 1);

                //If it's a link (*.lnk) exits
                //Maybe the mistake is here, but I don't know!
                if (new FileInfo(sb.ToString()).Extension == ".lnk") { return 1; }

                // Adds the menus
                for (int i = 0; i < Menus.Length; i++)
                {

                    //Updates the ID
                    Menus[i].MenuItemInfo.wID += idCmdFirst;

                    //Verifies if the menu has some submenus
                    if (Menus[i].SubMenu != null) { PopolateSubMenu(Menus[i], idCmdFirst); }

                    //Adds the menu
                    DllImports.InsertMenuItem(hmenu, Menus[i].Position - 1, 1, ref Menus[i].MenuItemInfo);

                    //Adds the icon
                    if (Menus[i].Image != null) {
                        System.Drawing.Bitmap Bmp = Menus[i].Image;
                        DllImports.SetMenuItemBitmaps((IntPtr)hmenu, (IntPtr)(Menus[i].Position - 1), 0x400, Bmp.GetHbitmap(), Bmp.GetHbitmap());
                    }

                }

                // Returns the number of added menu item
                return (int)(NumeroMenu + 1);

            }

<br />
        public void SetProperty(String Path, String Value)<br />
        {<br />
			if (!this.Dispatcher.CheckAccess())<br />
			{<br />
                                Exception exception = null;<br />
				this.Dispatcher.Invoke((Action<String, String>)((path, val) => { <br />
                    <br />
                    try<br />
                    {<br />
                        SetProperty(path, val); // throws an exception<br />
                    }<br />
                    catch (System.Exception e)<br />
                    {<br />
                        exception = e;<br />
                    }<br />
                }), Path, Value, exception);<br />
                if(exception != null){<br />
                    MessageBox.Show(exception.Message);<br />
                }<br />