I don't know why but the log-file isn't created, maybe it's because dxwnd doesn't see any problem. I sent you PM about it.
Project Mercury. Raxasoft Games. (Direct3D 9) Link
Well... Thanks for the answer. By the way in this case the game is modern but was made in old style 256x224 resolution. It has their own bilinear filter for fullscreen mode that looks not good. I thought that if the game is 2d and uses directdraw (even with directx9) it could do the trick... So... good luck then. I hope that in the future you'll make your filters work with these games too, low-res pixel art games is become some modern trend now.
Is there any special conditions to use these scaling filters with specific game? I tried many options but can't just force this stuff to work. For example. I have this directx9 game. How can I force scaling filters (hq, interlace etc) to work with it. Or it's just completely impossible? Thank you!