Seeking aid for multiple h-games.

Good day, all.

I'm seeking a bit of aid when it comes to a few hentai games I have, shall we say, acquired.

The first is DEMONION, by Astronauts: Sirius. When I go to mount it, I get a file popup that either asks me if I want to open it or import pictures from it. I choose to open it. I double-click set-up and I get a message that says "The version of this file is not compatible with the version if Windows you are running."

Now, I am running Windows 7 Ultimate so I'm fairly sure that DEMONION should work. Could it be the "disc" itself that is bad?

The second is Hanairo Heptagram by Lump of Sugar. With this one, I simply cannot get an install window to pop up. I mount the file on DaemonTools, nothing happens. I open the file up so I can see the contents and I double-click set-up. Nothing happens.

Any help would be much appreciated here.

Cheers
GM001