The 2nd place File of the Month for November was FXAA Post Process Injector by Retspadez, with 351 votes. Unfortunately we were unable to reach him in time for this set of interviews. In place of the interview (for now), here is some information about the mod.
The FXAA Post Process Injector allows you to "enhance your graphics with FXAA and a variety of post processing effects, including bloom, sharpen, technicolor, sepia, tonemap, vignette, and more." The mod currently comes with 4 presets, or you can customize the settings yourself. Many settings chosen by others can also be found on SkyrimNexus (run a search for FXAA).
The injector is not compatible with mods that replace d3d9.dll except ENBseries. In fact, Retspadez recommends using Enhanced Shaders, which includes the ENBseries patch.
With 351 FotM votes and over 2100 endorsements, the FXAA Post Process Injector is very popular. If you haven't already, check it out. You can see a (slightly outdated) demonstration video below; there are more videos and plenty of screenshots available on the mod page too.
Check back tomorrow for the final interview with the author of November's winning File of the Month, and don't forget to cast your vote for December.
Update: Erroneous information about 1.3 removed. Thanks for reports.