1.NET4.0之后动态类型版本

var startup = Environment.GetFolderPath(Environment.SpecialFolder.Startup);
var lnkFilePath = Path.Combine(startup, "XXClient.lnk");
var shellType = Type.GetTypeFromProgID("WScript.Shell");
dynamic shell = Activator.CreateInstance(shellType);
var shortcut = shell.CreateShortcut(lnkFilePath);
shortcut.TargetPath = Assembly.GetEntryAssembly().Location;
shortcut.Arguments = "";
shortcut.WorkingDirectory = AppDomain.CurrentDomain.SetupInformation.ApplicationBase;
shortcut.Save();

2.NET3.5及之前反射版本

var startup = Environment.GetFolderPath(Environment.SpecialFolder.Startup);
var lnkFilePath = Path.Combine(startup, "XXClient.lnk");
var shellType = Type.GetTypeFromProgID("WScript.Shell");
var shell = Activator.CreateInstance(shellType);
var shortcut = shellType.InvokeMember("CreateShortcut", BindingFlags.Public | BindingFlags.Instance | BindingFlags.InvokeMethod, null, shell, new object[] { lnkFilePath });
var shortcutType = shortcut.GetType();
shortcutType.InvokeMember("TargetPath", BindingFlags.Public | BindingFlags.Instance | BindingFlags.SetProperty, null, shortcut, new object[] { Assembly.GetEntryAssembly().Location });
shortcutType.InvokeMember("Arguments", BindingFlags.Public | BindingFlags.Instance | BindingFlags.SetProperty, null, shortcut, new object[] { args });
shortcutType.InvokeMember("WorkingDirectory", BindingFlags.Public | BindingFlags.Instance | BindingFlags.SetProperty, null, shortcut, new object[] { AppDomain.CurrentDomain.SetupInformation.ApplicationBase });
shortcutType.InvokeMember("Save", BindingFlags.Public | BindingFlags.Instance | BindingFlags.InvokeMethod, null, shortcut, null);