First and foremost Pandora...
> DOES NOT USE COOKIES
> DOES NOT USE YOUR IP for figuring out if you are the same user.
> IS CLIENT BASED. Thats why you can "rip" the music from it.
> Uses flash to play its content.
Secondly, this story about "formatting c:" and having remember your preferences along with your cable modem changing IPs at the same time is a LIE.
A CLEAN system WILL NOT Register to Pandora.
What Pandora does basically is:
1. Check local hard drive for its "special file". This is file is located in your personal folder (eg. C:Documents and Settings*USERNAME* or similar)
2. If not found it makes one.
3. Every time you login on your computer and go to Pandora it knows this is "Bob".
Anyone willing to argue? vyruswat@dodgeit.com -- give me a thought.
Anyone interested in finding the file can do so with a debugger or isolated environment tests.
Vyrus