Short words:
DG VooDoo 2 wrapper created by Dege
Managed to launch fullscreen, widescreen in 1600x900. In the mentioned wrapper i've changed only not to launch in fullscreen but in a "stretched window". Runs good:)
My specs - Dell XPS l702x - it's a laptop with built in intel Hd3000 and Nvidia Geforce gt555m. Trust me it's a real pain in the... to run older games on this config. Something with integrated graphics card structure and priorities of mainboard to use one or another.
Although thanks to DG VooDoo managed to launch Shogun Total War. Still working on Warhammer Dark Omen though.
Tested solution on another laptop with Ati graphics radeon hd 4200 - couldn't launch in proper widescreen, although I guess it's a directX issue. And the card itself. It has really issue'ish drivers.
Hope it helps some fellow Dune fans.