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VENDOSOFT licence configurator for Windows Server 2016, Windows Server 2019 and Windows Server 2022

Microsoft Windows Server is the most widely used server operating system in the world. It can be deployed either on a cloud platform such as Microsoft Azure or on a hardware system. Companies need the appropriate licences to use and to manage Microsoft Windows servers.

What is known as the Server CAL licensing model is common on Microsoft systems. In order to be legally licensed, this model requires access licences (CALs) in addition to the server’s own licence for server operation. The vendor offers the choice between licensing by users (User CALs) or devices (Device CALs).

If you want to calculate your own licence requirements for Windows Server 2016, Windows Server 2019 or Windows Server 2022, you should know these four rules!

Rule No. 1: Each physical processor is rated with at least eight cores.
Rule No. 2: Each physical server is rated with at least 16 cores.
Rule No. 3: Taking rules 1 and 2 into account, all physical and active cores in the server must be licensed – only then does a standard server have two, and a data-centre server unlimited, virtualisation rights.
Rule No. 4: To acquire two additional VM rights with the standard edition, all physical active cores need to be re-licensed.

Use the licence calculator below to calculate how many licensed cores you need.

Simply fill out the form – your VENDOSOFT consultant will determine the number of Microsoft server licences you actually need!

VENDOSOFT license configurator

Calculate your requirement for licensable cores here:

Number of physical processors
Number of active cores per processor
Maximum number of concurrently running physical/virtual Windows Server instances on the host.
Calculate now!

Certified Microsoft Licensing Professionals

at VENDOSOFT advise on your specific server licensing needs as well as other new and used software from Microsoft and Adobe.

Available from VENDOSOFT:


  • 2 or 16-core Windows Server volume licences
  • 16 or 24-core OEM base licence plus 2 cores to top up the licence requirement – incl. data media, COA with key and licence document


  • 2 or 16-core Windows Server volume licences – incl. documentation for guaranteed legal certainty

Complete the licence configurator or request an individual offer.

Free licensing advice at

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Please note that VENDOSOFT only supplies corporate customers, not private individuals!

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