First round UEFA Cup drawing issue

Hello all,

Is it possible to prevent the game to draw the first round of UEFA cup with same national clubs? Ie Bremen vs Dortmund or Trabzonspor vs Galatasaray?

Yes, it is possible.
In the .exe file of the original DOS version, the format of the Uefa cup is defined at offset 0x14C208.
There the following byte string can be found:

02 01 FF 40 20 0F 00 15 01 00 20 01 35

Just replace the 01 byte after 15 with 00 instead. It becomes:

02 01 FF 40 20 0F 00 15 00 00 20 01 35