Sorry oldlady, the software is not being distributed legally from what I can tell. Here is the Website
and here is what it says:
What we sell is the modified software which enables the game to be run on XP and/or VISTA, the game is distributed for FREE on CD-R 0r DVD-R with the software. The games are either in the public domain or their creators are no longer in business.
To my knowledge the rights to 11th hour have not been released to the public domain. I am sure someone will correct me if I am wrong.
The fact that you are not buying the game but the software to run it is very shady indeed.