registered user ID

[Bolshoy Huy]

What is the registered user ID for? It appears to be hard to change,
as well as
the product ID. I used Winhacker 2.0 to change it. Seems to be solely
used
to register your PC when you buy it.

However, in the cookies folder, all cookies are named registered user
(e-mail address removed).
I had changed the registered user ID(as well as the C:\ drive) to my
name because if the PC is stolen I could prove it's mine. I would like
to know if when you visit a site that has cookies, the server
stores/logs your PC's registered user ID or if it's only stored on your
PC?
Also, is it possible for the site's admin to know who visited by using
the registered user ID even if it's changed to JohnDoe, or by using the
IP address?
I guess the IP address cannot be changed no matter what, thus you will
always be tracked.

 

[Vanguard]

What is the registered user ID for? It appears to be hard to
change,
as well as
the product ID. I used Winhacker 2.0 to change it. Seems to be
solely
used
to register your PC when you buy it.

However, in the cookies folder, all cookies are named registered
user
(e-mail address removed).
I had changed the registered user ID(as well as the C:\ drive) to my
name because if the PC is stolen I could prove it's mine. I would
like
to know if when you visit a site that has cookies, the server
stores/logs your PC's registered user ID or if it's only stored on
your
PC?
Also, is it possible for the site's admin to know who visited by
using
the registered user ID even if it's changed to JohnDoe, or by using
the
IP address?
I guess the IP address cannot be changed no matter what, thus you
will
always be tracked.

How is this a *hardware* question?