The following is the official information made available from Microsoft to their partners:
Vista versions
Visit
http://www.microsoft.com/windowsvist...s/default.mspx and
http://www.microsoft.com/windowsvist...s/default.mspx for a detailed overview of Windows Vista features and benefits.
Vista licensing
One can obtain the various Vista versions via the following licensing paths:
Windows Vista Licensing Facts- OEM stands for "Original Equipment Manufacturer" and it can only come pre-installed with a new computer.
- The Windows Vista OEM license may only be sold with a complete system.
- The Windows Vista OEM license is tied to the computer system with which it has been sold and cannot be transferred to another computer.
- The Windows Vista OEM license cannot be the Upgrade version.
- FPP stands for "Full Packaged Product" and can be bought as a stand-alone piece of software.
- The Windows Vista FPP license can be either the Full or the Upgrade version.
- In Volume Licensing, only Upgrade licenses and Software Assurance are available. Customers who need a Full version should consider buying an OEM license if they also need a new PC or an FPP if they don’t.
- Volume Licensing customers with active Software Assurance for Windows Business (previously Windows Professional) may install Windows Vista Enterprise or Windows Vista Ultimate.
- Windows Vista Home editions cannot be upgraded to one of the Windows Vista Business editions through Volume Licensing.
- Software Assurance (SA) is a maintenance offer that helps customers get the most from their investment through a broad range of benefits. From deployment planning to staff training, SA helps customers increase worker productivity, accelerate organizational performance, and realize a return on their software investment faster. Key SA benefits include the rights to use Windows Vista Enterprise, eLearning, training vouchers, the Desktop Optimization Pack (at a surcharge), and TechNet Plus. For details, visit http://www.microsoft.com/licensing/sa/default.mspx.