c:\documents and settings\[username]\Application Data\Macromedia\#shared objects\ which holds mpsnare.iesnare.com
A file called stm.sol seems to be created, I guess this has a signature of your PC.
Something about bookies, do you do online betting?
EDIT TO ADD:
ieSnare is a back-end fraud protection system that matches distinct device identities to online accounts. A database matching system, called the Device Reputation Authority, links devices and accounts allowing merchants to identify and flag fraudsters without revealing personal information. Once these devices are identified, forensic information can be shared with all organizational networks protected by ieSnare. This allows subscribed networks to make business decisions about individual connections, and allow, limit, or prevent access based on the reputation of the devices involved."
Bodog uses it.