可以使用System.ServiceProcess.ServiceController这个类允许连接到正在运行或者已停止的服务、对其进行操作或获取有关它的信息。ServiceController 提供了开始和停止服务的方法（Start, Stop）。
但是这个类并没有提供修改服务启动类型的方法，可以通过C#调用cmd来修改

参考网上的这个方法：
//设置服务的启动类型
//sServiceName服务名称
//iStartType要设置的启动类型 2：自动，3：手动，4：禁用
//返回成功状态 true：成功，false：失败
复制代码 代码如下:
public Boolean SetWindowsServiceStartType(String sServiceName, int iStartType)
{
try
{
System.Diagnostics.ProcessStartInfo objProcessInf = new System.Diagnostics.ProcessStartInfo();
objProcessInf.FileName = "cmd.exe";
objProcessInf.CreateNoWindow = false;
objProcessInf.WindowStyle = System.Diagnostics.ProcessWindowStyle.Hidden;
string sStartState = "boot";
switch (iStartType)
{
case 1:
{
sStartState = "system";
break;
}
case 2:
{
sStartState = "auto";
break;
}
case 3:
{
sStartState = "demand";
break;
}
case 4:
{
sStartState = "disabled";
break;
}
default:
{
break;
}
}
objProcessInf.Arguments = "/c sc config " + sServiceName + " start= " + sStartState;
System.Diagnostics.Process.Start(objProcessInf);
return true;
}
catch
{
return false;
}
}

复制代码 代码如下:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Diagnostics;
using System.ServiceProcess;
using Microsoft.Win32;
namespace Service
{
public class ClassService
{
private string ServiceName; //服务名称
private ServiceController sc;
/// <summary>
/// 服务操作
/// </summary>
/// <param name="ServiceName">服务名称</param>
public ClassService(string ServiceName)
{
this.ServiceName = ServiceName;
this.sc = new ServiceController(ServiceName);
}
/// <summary>
/// 启动服务
/// </summary>
/// <returns></returns>
public bool StartService()
{
try
{
if (sc.Status != ServiceControllerStatus.Running)
sc.Start();
else
return false;
}
catch (Exception)
{
return false;
}
return true;
}
/// <summary>
/// 停止服务
/// </summary>
/// <returns></returns>
public bool StopService()
{
try
{
if (sc.Status != ServiceControllerStatus.Stopped)
sc.Stop();
else
return false;
}
catch (Exception)
{
return false;
}
return true;
}
/// <summary>
/// 重启服务
/// </summary>
/// <returns></returns>
public bool RestartService()
{
if (StopService())
{
if (StartService())
return true;
else
return false;
}
else
return false;
}
/// <summary>
/// 获取服务启动类型
/// </summary>
/// <returns>2:自动 3:手动 4:禁用 0:获取失败</returns>
public int GetServiceStartMode()
{
int Mode = 0;
try
{
RegistryKey key = Registry.LocalMachine.OpenSubKey(@"SYSTEM\CurrentControlSet\services\" + ServiceName);
Mode = Convert.ToInt32(key.GetValue("Start"));
key.Close();
}
catch (Exception)
{
return 0;
}
return Mode;
}
/// <summary>
/// 设置服务启动类型
/// </summary>
/// <param name="Mode">2:自动 3:手动 4:禁用</param>
/// <returns></returns>
public bool SetServiceStartMode(int Mode)
{
try
{
RegistryKey key = Registry.LocalMachine.OpenSubKey(@"SYSTEM\CurrentControlSet\services\" + ServiceName, true);
key.SetValue("Start", Mode);
key.Close();
}
catch (Exception)
{
return false;
}
return true;
}
}
}