Windows 7: Impossible to start MakeHuman 1.2.0a 3

[HansokuMake]

Using:
Windows 7 Home Premium 64-bit SP1
AMS FX-4170 Quad-Core Processor
16,00 GB Ram
2 x NVIDIA GeForce GTX 1060 6 GB

When MakeHuman 1.2.0-alpha3-win32a was downloaded, unzipped and installed in the default Folder (several tries), it was impoosible to start the program from the start menu or otherwise.

The makehuman.log shows at its end this message:

[2019-10-18 11:06:48,793] acceleratesupport.py-><module>():17 -- MESSAGE -- No OpenGL_accelerate module loaded: No module named 'OpenGL_accelerate'

The python_err.txt shows this messages:
No OpenGL_accelerate module loaded: No module named 'OpenGL_accelerate'
and
Traceback (most recent call last):
File "makehuman.py", line 613, in <module>
main()
File "makehuman.py", line 603, in main
from mhmain import MHApplication
File "./core\mhmain.py", line 45, in <module>
import mh
File "./lib\mh.py", line 50, in <module>
from qtui import Keys, Buttons, Modifiers, Application
File "./lib\qtui.py", line 44, in <module>
from PyQt5 import QtCore, QtGui, QtOpenGL, QtWidgets
ImportError: DLL load failed: %1 ist keine zulässige Win32-Anwendung.

The latest drivers for the graphic cards are installed.

Thanks to everybody who has an idea to solve the problem.

[RobBaer]

It has been some Time since I've used Windows 7 so I don't remember exactly what has changed, or what "default folder" might mean. On Windows 10, when you install for "all users" things get saved in C:/program files (x86) versus c:/users/%USERNAME%/AppData/... when you install for "just me".

My memory is the "all users" approach is more generic in terms of the way Windows 7 might do things. Did you install for "all users"?

[joepal]

This doesn't look like a graphics card problem. It seems like a DLL file cannot be loaded, but since we don't get the name (it says "%1"), we don't know which one.

I'd start suspecting that the antivirus has erronously put a DLL file in quarantine or something. Maybe you could start looking there?

[HansokuMake]

Thank you for the answers.
The search keeps going on
and on
and on......