Cores, more cores and licensing


The otherday I wrote a bit on the licensing changes around Windows 2003 R2 EE, DE and virtualization.  Well licensing is something that is always causing confusion and multi-core processors just add to that confusion.  Well our friends in Redmond have a page up to help explain the licensing requirements for multi-core systems.  In a nutshell



  • licenses are based on sockets, or physical processors

  • one license per socket, not per core

  • XP Home can support a single multi-core processor

  • XP Pro can support dual multi-core processors

You can find out more at the Multicore Processor Licensing page.  And for more on licensing in general you can find out more at the Licensing Home Page.

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