While the specific names escape me, there have been a few projects over the years that have replaced DirectDraw or Direct X DLL files with re-implemented counterparts that tend to work much better on modern hardware.
I believe in one such case, the original StarCraft would run with really buggy colors using the official Windows DLL files and a drop-in DLL replacement would fix the issue (these days I think Blizzard has shipped their own fix for this issue).
Another would be DXWND which is amazing :)
It has a ton of options that not only fix various issues with old games but you even have additional features like an ability to run games that never had that support in windowed mode.
I believe in one such case, the original StarCraft would run with really buggy colors using the official Windows DLL files and a drop-in DLL replacement would fix the issue (these days I think Blizzard has shipped their own fix for this issue).