I know this is not Windows 7 but, the Indivision AGA is rumored to have a scan line emulation mode that I think would be similar to what your talking about.
Perhaps a try doing a google search for "scan line emulation".
Regards,
AmigaEd
Not Indivision AGA, but Indivision ECS which has 2 discrete video mode filters: Scanline and TV emulation mode.
