为什么安装后我的服务无法启动？

Question

I've created a windows service, which is set to start automatically. I also added following code to installer:

    public ProjectInstaller()
    {
        InitializeComponent();
        serviceProcessInstaller1.AfterInstall += new InstallEventHandler(serviceProcessInstaller1_AfterInstall); 
    }

    void serviceProcessInstaller1_AfterInstall(object sender, InstallEventArgs e)
    {
        try
        {
            var sc = new ServiceController(serviceInstaller1.ServiceName);
            sc.Start();
        }
        catch
        {
        }
    }

    protected override void OnCommitted(IDictionary savedState)
    {
        try
        {
            var sc = new ServiceController(serviceInstaller1.ServiceName);
            sc.Start();
        }
        catch
        {
        }
    }

The service is installed properly, but it never starts.

What could be the cause of this?

Answer 1

Perhaps you need to put in some temporary diagnostic logging, maybe using System.IO.File.WriteAllText(); . I know it's not the answer you're looking for, but it'll probably give you the quickest solution!

try
{
    var sc = new ServiceController(serviceInstaller1.ServiceName);
    sc.Start();
    System.IO.File.WriteAllText(@"c:\temp\servicestart.txt", "Service started");
}
catch (Exception ex)
{
    System.IO.File.WriteAllText(@"c:\temp\servicestart.txt", ex.Message);
}

Answer 2

Ensure in your Main() function that you have this line:

ServiceBase.Run(new ServiceClass());

I've been guilty a few times of leaving Application.Run(new Class()); (If you started off of a windows form app)

Answer 3

I've created a service a while ago and what mine differs from yours is that you declared this way

var sc = new ServiceController(serviceInstaller1.ServiceName);

mine instead of taking the serviceInstaller1.ServiceName I was giving the name via a simple string like this

var sc = new ServiceController("MyService");

I think this isn't the problem at all, but when talking about services everything is worth a try

EDIT: giving a look at it now I've seen that the name I used was actually the DisplayName not the service name, try passing it manually or by using serviceInstaller1.DisplayName

Answer 4

Does it possibly have a dependency on a another service. Or have you tried a delayed start?

Answer 5

This worked for me

protected override void OnAfterInstall(IDictionary savedState)
{
      base.OnAfterInstall(savedState);
      System.ServiceProcess.ServiceController sc = new System.ServiceProcess.ServiceController(serviceInstaller1.ServiceName);
      sc.Start();
}