C#创建windows服务默认是没有交互界面的，form和console程序均无法显示，但是可以在服务中打开桌面交互，开始>>运行>>services.msc>>选中你的windows服务>>右键点属性>>登录>>勾选允许服务与桌面交互，另外可以在服务的installer中添加AfterInstall事件响应：
private void serviceInstaller_AfterInstall(object sender, InstallEventArgs e)
{
SetServiceDesktopInsteract(this.serviceInstaller.ServiceName);
}

/// <summary>
/// 允许服务使用界面交互
/// </summary>
/// <param name="serviceName"></param>
private void SetServiceDesktopInsteract(string serviceName)
{
ManagementObject wmiService = new ManagementObject(string.Format("Win32_Service.Name='{0}'", serviceName));
ManagementBaseObject changeMethod = wmiService.GetMethodParameters("Change");
changeMethod["DesktopInteract"] = true;
ManagementBaseObject OutParam = wmiService.InvokeMethod("Change", changeMethod, null);
}