Change Windows low resolution smoothing algorithm

I'm using Windows 8.1 and running some old games on it (they are fully compatible). Lots of them use 800x600 or even 640x480 resolutions, but I have 1920x1080 display. While scaling, Windows provides some kind of smoothing (Nearest-neighbor algorithm, I guess), but it's quite poor. I want to use some advanced methods, like 2xSAI for example. If I run something in DOS-box, I can easily choose scaling algorithm, and I want anything like this in Windows. As I have AMD videocard (r9 380), I find some graphics enhancements in it's driver, including smoothing method. But it has no effect on old games (I guess it's because they even don't use OpenGL or DirectX). So, is there any way to choose low-resolution smoothing method?

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