Could you explain the licensing concept of ExtConnector in relation to purchasing the Windows operating system?

The provided context does not contain specific information about ExtConnector licensing in relation to Windows Server or any details on whether an ExtConnector license is required per connecting host or per virtual server. Therefore, I cannot provide guidance on this licensing concept. For accurate information regarding ExtConnector licenses, I recommend consulting official Microsoft documentation or reaching out to a Microsoft licensing specialist.

References:

• Lifecycle FAQ - Extended Security Updates
• License SQL Server, Windows Server, and Linux in Azure VMware Solution
• Licensing Azure Virtual Desktop
• Configure Windows Server Pay-as-you-go with Azure Arc
• Cloud-native licensing and cost management with Arc-enabled servers

Hi [IIJ] Mai Hisada,

Well, ExtConnector (External Connector) licenses are designed for scenarios where external users, those who are not employees or on-site contractors, need to access your Windows Server environment. Instead of purchasing individual Client Access Licenses (CALs) for each external user, the ExtConnector license provides a simplified way to cover all external connections.

It’s important to note that ExtConnector is licensed per server instance, not per connecting host. This means that if you have multiple Windows Server installations (physical or virtual), each server that external users connect to requires its own ExtConnector license. Internal users, such as employees, still require standard CALs, but external users are covered by the ExtConnector license without needing individual CALs.

In your case, if you plan to upgrade to Windows Server 2025 and provide the OS under a perpetual license, you should calculate the number of ExtConnector licenses based on the number of servers (physical or virtual) that will be accessed externally. For example, if you have three virtual servers that external customers will connect to, you would need three ExtConnector licenses.

This approach ensures compliance while keeping licensing straightforward for environments with many external users.

I hope this clarifies the concept and helps you plan your licensing strategy effectively. If you find this answer helpful, please hit “Accept Answer” so I know your concern is resolved. Feel free to leave a comment if you need further assistance.

Jason.

Hi [IIJ] Mai Hisada,

Just checking in to see whether the issue has been resolved. Let me know if you need any further assistance from my side. If you found the answer helpful, selecting Accept Answer would be greatly appreciated 😊