Explanation/Reference:
Explanation:
F: Example: Add an app service extension to package.appxmanifest
In the AppServiceProvider project's Package.appxmanifest file, add the following AppService extension to the <Application> element. This example advertises the com.Microsoft.Inventory service and is what identifies this app as an app service provider. The actual service will be implemented as a background task. The app service app exposes the service to other apps
B: Create the app service
An app service is implemented as a background task. This enables a foreground application to invoke an app service in another application to perform tasks behind the scenes. Add a new Windows Runtime Component project to the solution.
C: Deploy the service app and get the package family name
The app service provider app must be deployed before you can call it from a client. You will also need the package family name of the app service app in order to call it.
Reference: https://docs.microsoft.com/en-us/windows/uwp/launch-resume/how-to-create-and-consume-an- app-service