I downloaded the http://skyrim.nexusmods.com/downloads/file.php?id=131 just for fun, to see if it worked with Morrowind. And it did! The default Skyrim presets looked like crap, but with some tweaking it looks pretty cool and doesn't impact performance more than 1-2 FPS.

Some screenshots (I'm also using MGE shaders like bloom, AO and sunshafts), you can open them in different tabs to switch between them:
http://i.imgur.com/UMQSn.jpg
http://i.imgur.com/IfmeI.jpg (the http://www.gamesas.com/topic/1377228-the-skyrim-fxaa-injector/page__view__findpost__p__20844966, just some slight blue tint to shadows and the horizon, makes it a tad more contrasty and atmospheric, especially at night; note that I've turned the actual AA off, just using the effects)
http://i.imgur.com/xEfqw.jpg (just to show what happens when settings are cranked up a bit)
http://i.imgur.com/Ix5FY.jpg (way too much, but nowhere near the limit)

I also found the http://mrhaandi.blogspot.se/p/injectsmaa.html, which is based on the FXAA injector but provides SMAA (obviously). It's an awesome form of AA that has basically no FPS hit while smoothing really well and avoiding the nasty blur that FXAA brings. Sadly it doesn't implement the shaders that the FXAA injector has, but since one is based off the other, I was wondering if some kickass shader-dude on this forum could have a go at merging the technicolour+tonemap shaders from the FXAA injector with the SMAA from the other one? That would be brilliant. If not, I just wanted to share this

(Sorry if this has been posted before, but the search function found nothing.)

That's interesting - thank you for sharing. Could you also post your settings?

Yes, this is interesting. If it could be fully converted to work even better with MW that would indeed be cool.

Well i bet a smart person could translate this to MGE shaders

ENBseries dedicated to morrowind would be better... but that probably wont happen

Sure thing! Here it is, tab by tab:

AntiAliasing - Turned off, since FXAA has this really nasty blur effect that ruins... well, everything really.
PreSharpen - Also turned off, since sharpening adds ugly white borders to bright items, especially when already using MGE bloom
Bloom - Off, since I use MGE bloom and HDR
TechniColor - Values in order: [2, 6, 1, 2, 3]. Basically, turning the "Technicolor" values too high desaturates, tints and "greys out" blackness. Using it sparingly looks best. The colour channel settings under that are interesting, since low values basically let you tweak shadow and horizon colour (higher values start tinting everything). I've cranked blue up the most, since it gives the slightly blue tint to shadows that you see on a sunny day, and makes night time a bit more atmospheric.
ToneMap - Values in order: [5, 6, 6, 0, 0]. Gamma 5 and exposure 6 was the closest I got to preserving the brightness of having the shader turned off. Saturation I had to turn up to 6, since the neutral value (5) actually desaturated things. Bleach and defog are just crappy, as far as I can tell, greying out colours and especially making darkness greyer.
Sepia - Turned off since it basically makes the game "brown and bloom" style akin to Gears of War or something.
PostSharpen - Even worse than PreSharpen in my opinion.

Thank you. I'm not sure my PC can handle it (I also run MGEXE), but it's certainly worth a try. I liked that bluish effect on the mountains in your screenshots.

[EDIT] Currently experimenting with the settings. You're right - the application hardly affects the FPS; it runs well on my laptop.

What was the configuration for the "Extreme" screenshot? That's pretty much the exact tone I'm looking for.

Thanks in advance

No idea, I just took my regular config (seen a few posts up) and cranked things up until I thought it looked bad. I guess people have different tastes, huh?