June 30 of this year and Jan. 31, 2009, may be the deadlines for U.S. retailers
and custom system builders, respectively, to sell Windows XP. But, due to exceptions
Microsoft has made, the operating system will be available for at least the
next two years for those who purchased business and Ultimate versions of Vista,
as well as for customers in certain geographies.

Microsoft has made it widely known that it will stop distributing XP to U.S.
manufacturers and retailers on June 30, while custom system builders can put
XP on hardware until Jan. 31, 2009. But what is probably less known -- and not
because Microsoft has been hiding the fact -- is that Windows XP Starter Edition,
a scaled-down version of the OS for emerging markets, will be available until
June 30, 2010.

Moreover, business and end-users who have purchased Windows Vista Business
or Ultimate licenses either at retail or through enterprise agreements with
Microsoft have indefinite "downgrade" rights to XP as part of their
license agreements, according to a Microsoft spokeswoman.

As it's now become clear from internal e-mails made public in a class-action
suit based in Seattle concerning Microsoft's Windows Capable program, Microsoft
anticipated that customers would experience device-driver and application incompatibilities
with Vista when it was first released. Giving buyers of high-end versions of
Vista the option to downgrade to XP made sense in case users encountered problems.
The availability of Windows Vista Service Pack 1 now is remedying many, if not
all, of these issues, users report.

With Microsoft pushing Vista, it's unlikely the company wants XP to be the
OS of choice for anyone, even if XP will be in circulation for at least the
next few years because of various exceptions.

The company is promoting Vista Starter Edition for inexpensive PCs currently
being sold in emerging markets, although that OS may not be a good option for
the ultra-low-cost PCs that will run Intel’s Atom chips because of hardware
and memory requirements.

Like the other versions of Vista, Starter Edition still requires 15G bytes
of free space; most low-cost machines, however, have only 2G to 8G bytes of
storage and 256M to 512M bytes of RAM. Hackers have managed to get Vista running
on the low-cost Asustek Eee PC with 4G bytes of RAM, but doing so required a
complicated custom installation and an additional 1G-byte USB stick and an 8G-byte
SD card to make it work.

Another thing that's unclear is if Microsoft will let OEMs sell Vista Starter
Edition, or an even more scaled-down version of it, in more mainstream PC markets
such as North America. So far, ultra low-cost PCs that run Linux like the Eee
PC -- which are gaining some, but not much, traction with consumers – don't
seem to be threatening Windows enough in the U.S., at least to require Microsoft
to cut Vista's price or footprint even more.

(Sumner Lemon in Singapore contributed to this article.)

IDG News Service

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