Panels and software
Windows license
The right to use Windows Server on a VPS. Included in the price or billed separately.
Windows Server is a paid system, and the provider pays Microsoft for every VPS running it. So the license is either already in the plan price or added monthly.
Some plans come with a trial Windows without activation — you will have to license it yourself. Windows is needed for client-server 1C, RDP access and Windows-only software.