I searched for so long and finally found a Solution for modern Systems - Win8.1 x64:
What you need:
DDRAW.DLL - then everything runs smooth (except the Menu).
D3DIM.DLL - It fixes the crash on resolutions higher than 1000 rows.
Wobaks Widescreen Solution ->
http://www.mediafire.com/download/24ar5 ... tch_v2.rar - No stretching.
The Resolution has to be edited in the autoexec.cfg:
"screenwidth" "3440"
"screenheight" "1440"
For the safe Side i have all Files in my Attachments - just copy it into your Shogo folder and overwrite everything.