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Microsoft U84-00016 WIN SVR Small Business CAL — main product image
Microsoft

Microsoft U84-00016 WIN SVR Small Business CAL

Microsoft's Small Business CAL license extends Windows Server 2003 access to additional users in your network.

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Overview

The Microsoft U84-00016 is a Client Access License (CAL) for Windows Server 2003 Small Business Edition. In Microsoft's server licensing model, each user or device that connects to the server requires a CAL in addition to the server license itself. This product provides that additional access right for one client, making it a necessary purchase for small businesses that needed to expand the number of users connecting to their server infrastructure.

It is important to note that Windows Server 2003 reached its end-of-life in July 2015, meaning Microsoft no longer provides security updates, hotfixes, or technical support for the platform. Organizations still running this server edition face significant security vulnerabilities and potential compliance issues. This CAL is primarily relevant for businesses maintaining legacy systems during a transition period, and any organization still relying on Windows Server 2003 should strongly consider migrating to a supported platform.

Specifications

Publisher
Microsoft
Model Number
U84-00016
Product
Windows Server Small Business CAL
Version
2003
License Type
Client Access License (CAL)

Pros & Cons

👍 Pros

  • Allows an additional client to legally connect to a Windows Server 2003 environment
  • Simple licensing model for small businesses already running this server edition
  • Genuine Microsoft license ensures compliance during audits

👎 Cons

  • Windows Server 2003 reached end of life in 2015 and no longer receives security patches
  • Only compatible with Windows Server 2003 Small Business Edition
  • No upgrade path to newer server versions using this license
  • Running an unsupported OS creates significant security and compliance risks

Frequently Asked Questions

A CAL grants a single user or device the legal right to connect to and use the services of a Windows Server 2003 installation. The server itself requires a separate license.
This is a standard CAL for Windows Server 2003 Small Business Edition. It authorizes one additional client connection to your server.
No, this CAL is specifically for Windows Server 2003. It cannot be used with Windows Server 2008, 2012, 2016, or later editions.
No, Microsoft ended extended support for Windows Server 2003 in July 2015. This product no longer receives security updates or patches.

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