About Windows Anytime Upgrade which can upgrade XP to Vista cheaply

When upgrading existing XP to Vista, in addition to purchasing CD / DVD media at the store, there is "Windows Anytime Upgrade" which can be authenticated by downloading from the net and seems to be relatively inexpensive to upgrade.

At the moment, we do not know exact delivery methods etc, but we have reported two of them that seem to be part of it, so I will report it. One is a mystery page that appeared on Yodobashi.com, and the other is probably Microsoft's page which seems to be for authentication.

Details are as follows.
First of all, this "Windows Anytime Upgrade" itself is explained in the following article.

Microsoft to Implement a Simple Upgrade Function in "Windows Vista" - CNET Japan

Microsoft, License / Activation of Vista Commentary

And, although there are unknown methods of offering, this page is on Yodobashi.com.

About the Windows Anytime Upgrade disk: Yodobashi.com


It seems to be written that "Windows Anytime Upgrade disk is required for WindowsVista upgrade ...". Prior to this page is this ...?

In addition, the page of Microsoft probably also has a page which seems to be for this authentication.

Windows Anytime Upgrade
https://pa.one.microsoft.com/ProductUpgrade.aspx

It is understood that the abbreviated name as "header image" is "WAU". Because there is "WAU" also in the source of Yodobashi.com, it seems that the alias is confirmed by WAU ... ....