c#中如何启用外部exe程序?

这个很 EASY 的，帮你百度一下：

// using System.Diagnostics;
private string appName = "calc.exe";

/// <summary>
/// 1. 启动外部程序，不等待其退出
/// </summary>
private void button1_Click(object sender, EventArgs e)
{
Process.Start(appName);
MessageBox.Show(String.Format("外部程序 {0} 启动完成！", this.appName), this.Text,
MessageBoxButtons.OK, MessageBoxIcon.Information);
}

/// <summary>
/// 2. 启动外部程序，等待其退出
/// </summary>
private void button2_Click(object sender, EventArgs e)
{
try
{
Process proc = Process.Start(appName);
if (proc != null)
{
proc.WaitForExit(3000);
if (proc.HasExited)
MessageBox.Show(String.Format("外部程序 {0} 已经退出！", this.appName), this.Text,
MessageBoxButtons.OK, MessageBoxIcon.Information);