Lmms comes already with calf plug-ins. They don't look so nice as the ones from calf studio gear page, but reverb, an equalizer, a compressor, a stereo enhancer, a bass booster, and some more stuff I have to figure out yet, are there.
As far as I know those work on windows too.
Edit:
https://www.youtube.com/watch?v=BI3KAoQ2Eho
As far as I know those work on windows too.
Edit:
https://www.youtube.com/watch?v=BI3KAoQ2Eho