Hello -
PS: can you please answer my question directly rather than dance around the answer like many users (and not only!) like to do?
I believe this qualifies as premature complaining. At least give me a chance to say something unsatisfactory before you start bitching about it...
Both baldur.ini and bgmain.exe are copied from the parent BG2 installation. The newly copied INI is then modified to set the path strings correctly for the new installation. A "dumb" patch (i.e., open, move to correct offsets, write, close) is applied to the newly copied BGMain.exe to set the starting XP to zero and to fix the caption seen on the Start bar.