In this article we look at the Office 2007 suite comparison and purchasing options. The following table shows what Office products are included in the various versions available.

What is open licensing? Licensing is virtual, confirmation is provided via email.  CCL or the business purchasing the licenses must register the license online, this is when a key is provided.  If you do not have media you must purchase a media CD to install your Office Suite.  Downgrade rights apply.

What is OEM? Original Equipment Manufacturer. This is generally a cheaper way to purchase Office Suites however, it is not transferable.  Ie, if your PC dies or you sell it, it has to go with the machine. OEM is not recorded by Microsoft for auditing. OEM Office products are not suitable for Terminal Server use.
Does not have downgrade rights.

What is boxed product (Buy Now)? It is off the shelf, comes in a box. Boxed product is not recorded by Microsoft for auditing.
Does not have downgrade rights.

What is FPP VUP? Fully Packaged Product Version Upgrade.  This is a boxed product upgrade.  Any FPP version upgrade can upgrade from Microsoft Works 6.0–10; Microsoft Works suite 2000–2006 or later; any 2000–2007 Microsoft Office program or suite; any Microsoft Office XP suite.
VUP’s are not recorded by Microsoft for auditing.
VUP does not have downgrade rights.

PLEASE NOTE: The only way to upgrade your office license to another version is via a VUP or if you purchased Software Assurance with your open license.  SA allows you a maximum of 2yrs of upgrades (plus other benefits). Please see the following link for more information on SA:-

http://www.microsoft.com/licensing/software-assurance/default.aspx

PLEASE NOTE: Where products are not recorded for auditing you will have to provide proof of purchase if audited by Microsoft.