Thanks very much friend. Although I forgot to say that all those questions I asked, I was referring to Lutris, not Wine (it was my fault, sorry, I forgot to mention it!).
That is, in what path to install the games when I start the installer.exe from Lutris (because first I start the installer.exe, and then change the path to launcher.exe, from Lutris). By mistake I read your Wine guide, instead of the Lutris one below.
Now I’m reading your Lutris guide and everything is perfect, but I couldn’t find where you recommend installing the games from Lutris (I guess it will be different from Wine).
I know you put this this in your guide:
I think I’ve been doing it wrong all this time. For example, I want to install Dark Souls:
I open Lutris, add the path of /Downloads/Dark Souls/darksouls-INSTALLER.exe to the library. I launch the installer and it asks me in which path I want to install it (and the doubt I have is in this step, I don’t know where I should install it):
C:/Games/Dark Souls
or
Z:/Games/Dark Souls
(I can’t remember which one I chose right now)
I choose the path, the installation starts and the installer installs c++ and directx, and the installation finishes.
After completing (or during) the installation, Lutris creates the prefix at:
/Games/dark-souls-PREFIX
or in
/Games/Dark Souls/dark-souls-PREFIX
(I don’t remember because I don’t have any games installed right now)
So now I go to the Lutris library and change the path to:
/Downloads/Dark Souls/dark-souls-INSTALLER.exe
to
/Games/Dark Souls/darksouks-LAUNCHER.exe
And I think this is my second mistake (and my second doubt), since according to your guide, I think I should choose a darksouks-LAUNCHER.exe that is duplicated within the PREFIX, something like:
/Games/dark-souls-PREFIX/Dark Souls/drive_c/Games/Dark Souls/Bin64/darksouls-LAUNCHER.exe
(or something like that, right?)
So I’ve been using the wrong launcher, I think.
Sorry, we, users who come from Windows, have this IQ to understand things 
plus my English is really bad 
sorry!