Maybe someone here can help me with that:

Whenever I try to move an object in my inventory screen the object moves a bit, the game stops for a second and then the sounds sets in as usual, but I cannot do anything anymore (including leaving the inventory screen, doing anything in my inventory and so on). When going to my desktop the attached message appears (don't know why it refers to MM7).

Before I had another problem with MM6 only starting with a grey screen, but I managed to fix it with the help of a file called mmcl.ini
I found another thread in this forum where someone seemed to have the same problem and solved it somehow, but he didn't really explained how. He only hinted that both problems seemed to be linked.
Following sveral other advices here I already installed the game outside of the x86 folder, did several fresh installations, tried out the english and the german version, but nothing helped. I'm using Windows 7.

Does anyone know what I could try to get the game working?

edit: Also tried several different compability modes, but none worked.

i had the same situation. im using windows 7 and MM6 with Grayface patch

i wanted to play without 2 black bars so i changed:
"BorderlessFullscreen=1" to "BorderlessFullscreen=0"
in mm6.ini file

and this caused inventory crash (blue screen + computer reset)

so i changed it back to "BorderlessFullscreen=1"
and in mm6 compability settings (right click mm6.exe file -> properties -> compability)
i have set "Run in 640 x 480 screen resolution"

and now i have fullscreen without crashes :D