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EDIT : Sorry for this, the solution was a registry entry badly set up in the install , the solution is in this thread ;
https://forums.stardock.com/331070
Sory for this.....

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First post... to complain 
Recently a collegua commented me how great the second opus was and I tried the demo for few days.... seems very great. After buying the game on line and downloading it twice from impulse (install directory problem, so first installation cancelled and despite the game being present and extracted in the temp folder impulse decided to download it a second time!!!).
Finally got the game running, registered and installed (v2.02), so decided to start by the first one "dark lords"...
1) no chapter selection in the launcher
2)could find the dirrectory with the .exe for dark lord, I can launch the game, not play the campaign, and not play the game (craches in the "loading screen").
Decide to try the Dark Avartar, same thing if I try starting a game, but different for one little point, I can play the two first campaigns... but for the DL campaign the diplomacy is done with "GENERIC_AI_greeting" type of text!!!!
I do not know if it is related to the patch 2.02 or what but the two demos (Gold Edition and the Vanilla one) run without any problem on my PC. TA runs without any problem but then I can not play the DL and DA without lot of glitch or simply crashing....
The problem comes when I start a new game, I select my oponents and the the loading screen apears but with a fill black "TIP" (in general you have a picture and a text)... and then it crashes...