I believe the licensing information is available with regedit. It is a
binary key located in
HKEY_LOCAL_MACHINE\SOFTWARE\Macromedia|Licenses\Macromedia Licensing
Service.

It is not human readable but is a long binary value that may contain more
the just the Key that gets entered. For instance, it may indicate which
program contained within Studio 8 are governed by the license (i.e.,
Fireworks, Contribute, etc.) If you've taken all Macromedia products off of
the machine and this key still exists, it probably won't hurt to remove it.

But...I would be very cautious in removing this key.

Well, here's my problem: I had the Flash trial for a bit, and then later found
out that a friend of mine had Flash. They offered to let me use that copy, so I
accepted. The thing is is that now I want my own copy, and if I were to get my
own copy, I would want to use my serial key. The only problem is that when
uninstalling and reinstalling Flash, it doesn't ask for the serial key to be
re-entered. It just starts up as it normally would.

I have tried many different things to figure out what the serial key is/where
it is, and how to change. Certain things like regedit and other programs that
check PC info didn't work. I also uninstalled Flash and used a program to find
dead-end registry entries and then clean them out. I ran the program and
deleted any I saw relating to Flash, and then reinstalled the trial version of
Flash, hoping that might work. Still it did not ask for the serial key.

Is anyone aware of how it can be changed besides a whole reformat?

Sorry I couldn't be of more help.

At this point, I can only suggest that, if you don't have numerous
Macromedia products, that you delete all Macromedia keys in the registry and
try to reinstall the software. Also, delete Macromedia related folders from:

C:\Documents and Settings\Username\application Data
C:\Documents and Settings\Username\local settings\application data
C:\Program Files\Macromedia

That's the only way I know of to delete all things Macromedia.

Before deleting this stuff, I would export those registry keys to a text
file so that they can be replaced if something goes wrong.

Thanks for the respone Greg.

I checked that out, and it seems I don't have a Licenses folder, and therefore
can't find the file you're talking about. I'm not sure why I wouldn't, but it's
not there. Is there any other possible way to see the key?