Because a service application is designed to be long-running, it usually polls or monitors the system, which you set up in the OnStart method. The OnStart method must return to the operating system after the service's operation has begun so that the system isn't blocked. To set up a simple polling mechanism, use the System. Timer component.
The timer raises an Elapsed event at regular intervals, at which time your service can do its monitoring. You use the Timer component as follows:. Add the following code in the MyNewService. OnStart event to set up the polling mechanism:. Timers namespace:. Elapsed event:. In the MyNewService class, add a member variable. It contains the identifier of the next event to write into the event log:.
Instead of running all your work on the main thread, you can run tasks by using background worker threads. For more information, see System. 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. If I use "Memory" option in the first screen shot, Click "Start", I also could get the information like the screen shot 3. So I doubt that it is related to the profiler tools. But if you use the profiler tool to collect the performance, we couldn't disable the process unless we just debug the app without using this tool. I use procmon to see what the service "VsStandardCollector.
I guess you convinced me that it isn't just related to debugging per se. Perhaps there is no way to avoid the participation of that component other than disabling it under "windows services". It seems like there should be a checkbox under VS options Thanks again.
If you didn't find a checkbox for this, I'll assume there isn't one. I haven't quantified how much this delays the startup of my app during debug. It appears that it may be minimal. But I'm a bit trigger-happy and I find myself disabling all the additional "features" that VS added which slow down the launching of my debug sessions So I doubt that it would be have a limitation for us to really achieve it.
I mean that it would start this service automatically if we debug an app. This documentation isn't for the latest version of Windows Service. If you're developing a Windows service with. Developers who want to release a Windows service that users can install and uninstall can use the free WiX Toolset or commercial tools like Advanced Installer , InstallShield , and others. For more information, see Create an installer package Windows desktop.
If you want to uninstall a service from your computer, don't follow the steps in this article. Instead, find out which program or software package installed the service, and then choose Apps in Settings to uninstall that program. Many services are integral parts of Windows; if you remove them, you might cause system instability.
To use the steps in this article, you first need to add a service installer to your Windows service. For more information, see Walkthrough: Creating a Windows service app. NETStandard library. If you have code that is very Windows specific, you can put that code directly in the Windows Services project.
For this article, I created a really simple sample project to walk through how to make all this work nicely. I created a. NET app and Windows Service both. They both reference a shared class library. This shows off how to mix. NET Core and. NET Framework projects together. Note: You are able to make a Windows Service exactly the same way you always have as long as your.
NET Core code is in a. I will skip going into any real details about what a Windows Service is or how to make one in detail. This article is focused on getting. After creating all three projects here are the default frameworks that Visual Studio is using for all three:. WindowsService1 —. NET Framework 4. NETStandard 1. I modified both by my web app and Windows Service to reference ClassLibrary1.
Adding the project reference worked just fine, but I cannot build. I get this error below:. They are not compatible. There is a simple fix, though. To fix my compilation error, I changed my Windows Service project to target. My ASP. NET web app that targets. NETStandard with no changes needed. Now we have a shared class library that can be used in an ASP. Currently, the class library is my example using. You likely will want to target 1.
If you change your Windows Services project to target. To make all of this work, you have to understand the target frameworks that you should be using so that you can reuse the same code across Windows and Linux. After all, that is the true power of. NET Core.
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