This isn't on a website. As I said, this file is:
C:\ProgramData\Rosetta Stone\Language Training\Content\data\72\2\722ed38d94614eec5d65fe50f0be4183f727d605
The file is extensionless, but is actually a Flash animation used by the program.
Rosetta Stone isn't bundled with anything. It was originally installed via disc, and it updates automatically.