To add applications to auto start up on Windows Server, there are a few things that must be done. Because by default, additional applications (other than Microsoft Windows) are not set to auto startup. Therefore, it must be added manually.
For some applications, it can be set as auto startup.
To do so, please login to Windows Server using Remote Desktop. Then on the Search menu type shell:startup
A window will open with the folder path:C:\Users\Administrator\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\Startup
Then copy the application that you want to add to the startup application. It's as simple as copy and paste.
For example, I will copy the Metatrader application from the Desktop to the auto startup program. So I just copy the application shortcut from the Desktop, then I paste it in this Startup folder.