"Chaya Eve" wrote in message news
On Wed, 27 Dec 2017 19:57:44 -0500, Bob_S wrote:

Now - why does one have to be a Windows Expert to reply to your question?
If you perhaps provided some clues as to why you need this (spoofing for
instance) someone may be able to help you. If your Windows Expert request
is to minimize replies - well done! Only mine so far.

The point of the Windows expert was to keep people on topic because I know
before I asked that almost nobody knows enough about Windows networking to
actually answer the question (least of all me).

So almost every answer, save that of Vanguard's current answer, will be off
topic - because the topic is far too difficult to answer for almost all
people in this ng, unless they actually *are* Windows (networking) experts.

Given only one in a thousand people know Windows networking well enough to
answer the question - I doubt we'll ever get the answer - because one to
none of those Windows experts are on this newsgroup most likely.

Chaya,

From my point of view after doing some brief research on behalf of your
inquiry, it is not totally a Windows issue but instead an Opera issue and
you should be looking for an Opera or even perhaps a Chrome knowledgeable
individual since it's based on Chrome. It's associated with Windows because
you are using the Opera browser within the windows operating environment and
the storage location for Opera's cookies, files and extensions is not
totally dictated by Windows.

If you read the reference site I included in my first post, it does offer
some possible clues with the one that may be worth considering and
researching further and that is Opera may be using a "Super Cookie" (ref:
https://www.techopedia.com/definitio...0/super-cookie)

If they do use a super cookie, I seriously doubt it will be easy to find but
with enough persistence and research - you may get lucky. Then you need to
know what you're looking at.

But even looking at standard cookies may be what you want. If you do happen
to find a cookie with an abbreviation like MUID (machine unique id) embedded
in it as Bing does - that may be what you are looking for. I doubt Opera
stores them in the same location as IE and from what I've read in some old
posts - you could try looking in %appdata%\Opera\Opera\cookies4.dat and
there is supposedly a direct toolbar link in Opera to the "Storage" section
where cookies are stored.

This is an old reference but contains Opera specific data format
explanations:
http://www.opera.com/docs/operafiles/#cookies

It has a lot of info but scroll down to "Cookie file formats" near the
bottom.

Again, have no idea of what you are trying to do but good luck.

Bob S.