No - you are not looking "in the wrong places" - because there is no
"download" or "patch" to upgrade you from Windows Xp Home Edition
to Windows XP Professional Edition (legitimate one, anyway.) In
other words - what you are looking for does not exist - whether you
believe that to be stupid or not (and no matter if one is to agree
with you) - that is just not the way things are or have been for
the past 5 years or so.
Windows XP Professional and Windows XP Home Edition are not the same
product. If you wish to upgrade Windows XP Home Edition to
Professional - you *do* have to buy the full retail or upgrade
edition of Windows XP Professional.
First - what in Professional do you think you need that Home is not
providing?
- EFS?
- Ability to join a domain?
- More easily accessible control over multiple users?
- Something else?
Second - what lead you to believe that because you had purchased
Windows XP Home edition (which is usually $100 less expensive than
Professional), you could "patch" this system at no cost (or little
cost) to a different operating system? While the two do have MANY
MANY things in common - there is obviously something in
Professional you think you need - so there is a definite difference
there.
While I cannot speak for Microsoft on why there is no "patch or
something" - I would assume that the underlying code is perhaps
just "too different" for a patch to properly take into account
everything. It might miss something or it may be unable to
actually make the changes "on-the-fly" that would be necessary to
complete such an upgrade. Then again - it may be simple economics
and license management. You bought and paid for Windows XP Home
Edition. Most people do not *need* the extra features of
Professional - very few do, in fact. And when they do - they
simply purchase the upgrade edition of Windows XP Professional for
about $175-$190ish or (if they can) the academeic upgrade version
for $80-$100ish. Some may even be willing to completely format
their system and purchase the OEM version for $120-$150ish. Others
get lucky and may go to an educational institution where it may
cost as little as $5 to get tthe upgrade edition!