At the end of the included Install it just installs a development version of Flash Player 9 (release 29, Flash9b.ocx).
Not only does this break any other version of Flash player installed, You can't remove it using normal methods. I had to use the tool 'uninstall Flash player' from adobe and script it (It run silently.
Then you can re-install the 115 release and everything is hunky dory.
I just wish that it hadn't broken every flash install in the school!