https://bugs.winehq.org/show_bug.cgi?id=42579
--- Comment #6 from Louis Lenders xerox_xerox2000@yahoo.co.uk --- Additional remark:
The problem with the trial has already been analyzed by A. Focht:
https://bugs.winehq.org/show_bug.cgi?id=35539
Might be worth a try for you too:
After failing install I could find the msi-file in /home/louis/.wine/drive_c/users/louis/Application Data/Labcenter Electronics/Proteus 8 Demonstration/install_8.6.23525.0/setup_demo8.6.23525.0.msi
Then run like:
wine msiexec -i setup_demo8.6.23525.0.msi KEY_SERVER=test
--> The installation succeeds