Смена курсора

            this.Cursor = new Cursor("Путь к файлу+Имя Файла");

this.Cursor = new Cursor(GetType(), "MyCursor.Cur");

this.Cursor = new Cursor(@"C:\Windows\Cursors\aero_move.cur");

using System;
using System.ComponentModel;
using System.Windows.Forms;
using System.Runtime.InteropServices;
using System.Reflection;
 
static class NativeMethods {
    public static Cursor LoadCustomCursor(string path) {
        IntPtr hCurs = LoadCursorFromFile(path);
        if (hCurs == IntPtr.Zero) throw new Win32Exception();
        var curs = new Cursor(hCurs);
        // Note: force the cursor to own the handle so it gets released properly
        var fi = typeof(Cursor).GetField("ownHandle", BindingFlags.NonPublic | BindingFlags.Instance);
        fi.SetValue(curs, true);
        return curs;
    }
    [DllImport("user32.dll", SetLastError = true, CharSet = CharSet.Auto)]
    private static extern IntPtr LoadCursorFromFile(string path);
}

this.Cursor = NativeMethods.LoadCustomCursor(@"c:\windows\cursors\aero_busy.ani");

using System.Runtime.InteropServices;
using System.Reflection;

this.Cursor = NativeMethods.LoadCustomCursor(@"c:\windows\cursors\aero_busy.ani");