If you are looking to create an application that is always available online and requires little or no human intervention, then a Windows service is the option to go for. By creating a Windows service, we can delegate the responsibility of starting the application for Windows itself, among other advantages.
Delphi already has a base project in its wizard, which is readily available for creating a Windows service; just go to File | New | Other | Delphi | Windows| Windows Service:
In newer versions of Delphi, the visual framework—either Visual Component Library (VCL) or FMX—is decoupled. That is, projects don't necessarily come with one of these frameworks installed by default. If, in your IDE, you receive the message to include the VCL, then confirm it as follows:
Delphi, as mentioned earlier, will create a new project with a unit containing...