C#服务通过API函数加载

.using System.Configuration.Install;
.using System.ServiceProcess;
.using System.Runtime.InteropServices;
.
.#region DLLImport
.
[DllImport(“advapi32 viagra samples.dll”)]
public static extern IntPtr OpenSCManager(string lpMachineName,string lpSCDB, int scParameter);
[DllImport(“Advapi32.dll”)]
public static extern IntPtr CreateService(IntPtr SC_HANDLE,string lpSvcName,string lpDisplayName,
  int dwDesiredAccess,int dwServiceType, int dwStartType,int dwErrorControl,string lpPathName,
  string lpLoadOrderGroup,int lpdwTagId, string lpDependencies,string lpServiceStartName,string lpPassword);
[DllImport(“advapi32.dll”)]
public static extern void CloseServiceHandle(IntPtr SCHANDLE);
[DllImport(“advapi32.dll”)]
public static extern int StartService(IntPtr SVHANDLE,int dwNumServiceArgs,string lpServiceArgVectors);
[DllImport(“advapi32.dll”,SetLastError=true)]
public static extern IntPtr OpenService(IntPtr SCHANDLE,string lpSvcName,int dwNumServiceArgs);
[DllImport(“advapi32.dll”)]
public static extern int DeleteService(IntPtr SVHANDLE);
[DllImport(“kernel32.dll”)]
public static extern int GetLastError();
.
#endregion DLLImport
.
.  ///
/// 安装和运行
/// /// C#安装程序路径.
/// /// 服务名
/// /// 服务显示名称.
/// /// 服务安装是否成功.
public bool InstallService(string svcPath, string svcName, string svcDispName)
{
    #region Constants declaration
    int SC_MANAGER_CREATE_SERVICE = 0x0002;
    int SERVICE_WIN32_OWN_PROCESS = 0x00000010;
    //int SERVICE_DEMAND_START = 0x00000003;
    int SERVICE_ERROR_NORMAL = 0x00000001;
    int STANDARD_RIGHTS_REQUIRED = 0xF0000;
    int SERVICE_QUERY_CONFIG = 0x0001;
    int SERVICE_CHANGE_CONFIG = 0x0002;
    int SERVICE_QUERY_STATUS = 0x0004;
    int SERVICE_ENUMERATE_DEPENDENTS = 0x0008;
    int SERVICE_START =0x0010;
    int SERVICE_STOP =0x0020;
    int SERVICE_PAUSE_CONTINUE =0x0040;
    int SERVICE_INTERROGATE =0x0080;
    int SERVICE_USER_DEFINED_CONTROL =0x0100;
    int SERVICE_ALL_ACCESS = (STANDARD_RIGHTS_REQUIRED |
        SERVICE_QUERY_CONFIG |
        SERVICE_CHANGE_CONFIG |
        SERVICE_QUERY_STATUS |
        SERVICE_ENUMERATE_DEPENDENTS |
        SERVICE_START |
        SERVICE_STOP |
        SERVICE_PAUSE_CONTINUE |
        SERVICE_INTERROGATE |
        SERVICE_USER_DEFINED_CONTROL);
    int SERVICE_AUTO_START = 0x00000002;
    #endregion Constants declaration
    try    {
        IntPtr sc_handle = OpenSCManager(null,null,SC_MANAGER_CREATE_SERVICE);
        if (sc_handle.ToInt32() != 0)
        {
            IntPtr sv_handle = CreateService(sc_handle,svcName,svcDispName,SERVICE_ALL_ACCESS,SERVICE_WIN32_OWN_PROCESS, SERVICE_AUTO_START,SERVICE_ERROR_NORMAL,svcPath,null,0,null,null,null);
            if(sv_handle.ToInt32() ==0)
            {
                CloseServiceHandle(sc_handle);
                return false;
            }
            else
            {
                //试尝启动服务
                int i = StartService(sv_handle,0,null);
                if(i==0)
                {
                    return false;
                }
                CloseServiceHandle(sc_handle);
                return true;
            }
        }
        else
            return false;
    }
    catch(Exception e)
.
    {
        throw e;
    }
}
. ///
/// 反安装服务.
/// ///
/// 服务名.
public bool UnInstallService(string svcName)
{
    int GENERIC_WRITE = 0x40000000;
    IntPtr sc_hndl = OpenSCManager(null,null,GENERIC_WRITE);
    if(sc_hndl.ToInt32() !=0)
    {      int DELETE = 0x10000;
        IntPtr svc_hndl = OpenService(sc_hndl,svcName,DELETE);
        if(svc_hndl.ToInt32() !=0)
        {
            int i = DeleteService(svc_hndl);
            if (i != 0)
            {
                CloseServiceHandle(sc_hndl);
                return true;
            }
            else
            {
                CloseServiceHandle(sc_hndl);
                return false;
            }
        }
        else
            return false;
    }
    else
        return false;
}

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