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No. You can acquire ISA Server 2006 and exercise downgrade rights to use ISA 2004 products.
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Yes. Downgrade rights are applicable regardless of which channel you used to acquire your license.
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You can order the media through your normal fulfillment channel. Product key information comes with the media.
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The Microsoft Service Provider License Agreement (SPLA) enables service providers to license Microsoft products on a monthly basis to provide services and hosted applications to their end customers. ISA server is offered under SPLA. Please visit Microsoft Services Provider Licensing Agreement for more information.
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Microsoft and its partners offer discounts from their retail product prices if you acquire your licenses in certain quantities, or volumes. There are several volume licensing programs that offer companies of all sizes economical ways to buy and manage multiple software licenses for as few as five desktops.
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SA is a way for volume licensing customers to keep current with the latest, most innovative Microsoft products. Under the SA program, customers acquire the right to install any new release of a product covered in the agreement during the term of the coverage. SA now also includes more benefits for the same price, including problem resolution support during business hours for covered server products, access to Managed Newsgroups and Online Concierge Chat, and Microsoft's self-paced training courses.
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ISA Server 2006 is licensed under the processor licensing model. Under this model, a license is required for each physical or virtual processor that is accessed by an operating system environment running ISA Server software. This license does not require any device or user CALs.
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Under this structure, a customer acquires a separate Processor license for each processor that is located in the server running the ISA Server software. If you have made a processor inaccessible to all operating system copies on which the ISA Server software is set up to run, you do not need a software license for that processor. This licensing model is most appropriate for applications that are accessible through the Internet and for internal applications with a high client-to-server ratio.
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Visit the How to Buy page for information on pricing.
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No. ISA Server 2004 and ISA Server 2006 are priced the same.
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A hardware partition or blade is considered to be a separate server. You are required to purchase as many ISA licenses as there are copies of the operating system running ISA. For example, you have a single processor server that is running two copies of the operating system, and two copies of ISA (one for each operating system). You would be required to purchase 2 ISA licenses.
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You have to acquire licenses only for processors that are accessible to any copy of the operating system upon which ISA Server software is installed. In a virtualized environment, processor licenses are required for every processor that is accessed by a virtual machine. Please see the virtualization licensing brief and virtualization white paper for more information on how to license under a virtualized environment.
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Under the per processor licensing model, ISA Server 2006 requires a license for each physical processor only. In a virtualized environment, you need a license for each virtual processor or fraction of a processor accessed by a virtual machine.
