ProcessStartInfo startInfo = new ProcessStartInfo();
                    startInfo.FileName = Application.StartupPath + @"\Updater.exe";
                    startInfo.WindowStyle = ProcessWindowStyle.Normal;
                    startInfo.Arguments = newVersion;//传参数给exe
                    Process.Start(startInfo);

------解决方案--------------------
C# code
 ProcessStartInfo startInfo = new ProcessStartInfo();
                    startInfo.FileName = Application.StartupPath + @"\DMM.AddUpdater.exe";
                    startInfo.WindowStyle = ProcessWindowStyle.Normal;
                    startInfo.Arguments = newVersion;
                    Process.Start(startInfo);

------解决方案--------------------
C# code
 ProcessStartInfo startInfo = new ProcessStartInfo();
                    startInfo.FileName = Application.StartupPath + @"\DMM.AddUpdater.exe";
                    startInfo.WindowStyle = ProcessWindowStyle.Normal;
                    startInfo.Arguments = newVersion;
                    Process.Start(startInfo);