You say the game is "downloading," but you also talk about a disk. Do you mean the game is installing?
I think Lozza doesn't mean either "downloaded" or "installed," but instead means "started the game."
Maybe the game was supposed to start at the end of the installation?
According to the "Windows 7 and Games" thread, Martin Mystere doesn't work in Windows 7, so it's extremely unlikely to work in Windows 8 or 10 either.
Martin Mystere: Operation Dorian Gray Judith has tried installing in all available XP compatibility modes on her 64-bit Win 7 and playing in different compatibility modes, but had no luck with getting the game to play.
Lozza, you can try the different compatibility modes, but you may not have any better luck than Judith did.
The French planete-adventure.net website claimed it was playable
http://www.planete-aventure.net/forums/viewtopic.php?t=2743Here is a Google translation of the section on Martin Mystere
Martin Mystère: Operation Dorian Gray
-> Works under Vista and Windows 7/8 (32 / 64b) in Windows XP compatibility mode - At launch, the game may indicate that the file is missing d3drm.dll. Download
***this file*** and place it in C: \ windows \ system32 folder (C: \ Windows \ SysWOW64 on 64-bit systems). For more information, see
***this forum*** (in English). This trick does not guarantee the operation of the game: some people could not make it work on these systems.
If the game asks you to install DirectPlay, do it (automatic installation).
There is an error irrelevant to the closure of the game.
That information is from 2010, and there is the possibility that it won't work for anyone now due to Microsoft now blocking certain forms of CD-based copy "protection" (DRM) on Windows 7 and 8. The UK version of Martin Mystere required the CD in the drive, so had some form of DRM on it.