Windows services are ideal for long-running functionality that does not interfere with other users who are working on the same computer. For example, in a Windows Service application, we can use a FileSystemWatcher to listen to the file system change notifications and raise events when a directory, or a file in a directory, changes.
The beauty is that the Windows Service application handles all the events in the background. Practically, we usually run services in the security context of a specific user account that is different from the logged-on user or the default computer account. So a hacker cannot easily mess up the file system or the service related database through a compromised computer. If you have created a Windows Service application in. NET framework, then you must remember the pain of debugging the Windows Service application.
During those old days, the tool TopShelf helped us a little bit, but not much. Now, with. In my opinion, the concept of a Windows Service is clearer as well. In order to follow along, you need to have. We will use the worker service template from. NET Core as a starting point.
If you are using Visual Studio, then you can follow the steps below: 1 Create a new project. Select Next. Then select Create. If you are using. In order to enable the worker service app to run as a Windows Service, we need to update the project a little bit by doing the following steps:.
In the code above, line 10 is the key to creating a Windows Service app. Through these simple steps, we have created an ASP. Moreover, this app is automatically a Console application that we can run directly via executing the Demo.
This setup allows us to debug the application as a Console app, and allows us to host the app in a Windows Service with minimum configurations. Bonus: we can check if the app is running as a Windows Service or not using the bool WindowsServiceHelpers. IsWindowsService method, which returns true if the current process is hosted as a Windows Service, otherwise false. Logging is essential for monitoring the status of our application.
In this application, we will use Serilog to log messages to both Console output and physical files. We will need to install the following NuGet packages that are related to Serilog: Serilog. Thread , Serilog. Hosting , Serilog. Console , and Serilog. InstallUtil Syntax.
Note : I am making use of Visual Studio , and hence you need to use the appropriate version installed on your computer. And make sure you are logged in as Administrator.
Without Administrator rights it would not allow you to install the Windows Service. In the command prompt window, copy the InstallUtil command from Notepad and right click in the Command Prompt and click Paste and then press Enter key.
Now the Installer will ask for Logon permissions to run the Windows Service and hence you will need to add Windows Username and Password of user who has appropriate permission.
Note : Username must include Domain Name or the Computer name. After successful installation you will see the following message. You can find the Windows Service in the Services window.
In order to open Services window in the Run Command type, services. Uninstalling the Windows Service using InstallUtil. The syntax for uninstalling a Windows Service is very similar to the installation syntax.
After successful uninstallation you will see the following message. Related Articles. Add Comments. Thank you for the feedback. The comment is now awaiting moderation. You will be notified via email when the author replies to your comment. Please select a comment to reply.
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I agree to the above terms. Download Required. What our readers say. Error Details. This site makes use of Cookies. Please refer Privacy Policy for more details. Got it. Yes, the windows service support is tied to the generic host so it can be used to run any type of application including ASP. NET Core applications. Currently, I have my own base class that allows me to extend preshutdown timeout, because I want the current operation to finish before I shut down service.
Having the ability to extend override the default preshutdown timeout would be awesome! NET Meetup Events. Web apps with ASP. Mobile apps with Xamarin. Microservices with Docker Containers. Modernizing existing. NET apps to the cloud. Principal Program Manager,. NET Follow. Read next Announcing F 4. In this post, I'll show you how to get started, explain the F 4. Phillip Carter March 29, Handling a new era in the Japanese calendar in.
NET Typically, calendar eras represent long time periods. In the Gregorian calendar, for example, the current era spans as of this year 2, years.
In the Japanese Can you explain the difference between the Service workers in 3. What is the story for UNIX configure to run app as daemon. Insert a line of code in the OnStop method that adds an entry to the event log when the service is stopped:. You can override the OnPause , OnContinue , and OnShutdown methods to define additional processing for your component.
Services report their status to the Service Control Manager so that a user can tell whether a service is functioning correctly. InteropServices namespace:. Add the following code to MyNewService. Before you run a Windows service, you need to install it, which registers it with the Service Control Manager.
Add installers to your project to handle the registration details. In the Design view, select the background area, then choose Add Installer from the shortcut menu. By default, Visual Studio adds a component class named ProjectInstaller , which contains two installers, to your project. These installers are for your service and for the service's associated process. Add text to the Description property, such as A sample service.
This text appears in the Description column of the Services window and describes the service to the user. Add text to the DisplayName property. This text appears in the Display Name column of the Services window. This name can be different from the ServiceName property, which is the name the system uses for example, the name you use for the net start command to start your service. Set the StartType property to Automatic from the drop-down list. When you're finished, the Properties windows should look like the following figure:.
Set the Account property to LocalSystem from the drop-down list. The LocalSystem account has broad permissions, including the ability to write to the event log. Use this account with caution, because it might increase your risk of attacks from malicious software.
For other tasks, consider using the LocalService account, which acts as a non-privileged user on the local computer and presents anonymous credentials to any remote server. This example fails if you try to use the LocalService account, because it needs permission to write to the event log. For more information about installers, see How to: Add installers to your service application. Before you decide to add startup parameters, consider whether it's the best way to pass information to your service.
Although they're easy to use and parse, and a user can easily override them, they might be harder for a user to discover and use without documentation. Generally, if your service requires more than just a few startup parameters, you should use the registry or a configuration file instead. A Windows service can accept command-line arguments, or startup parameters. When you add code to process startup parameters, a user can start your service with their own custom startup parameters in the service properties window.
However, these startup parameters aren't persisted the next time the service starts. To set startup parameters permanently, set them in the registry.
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