KTGranulator is a free delay line granulator available as a VST effect plugin.
Server 1 Afreecodec
4040 Retro Limiter HD a look-ahead brick wall limiter.
Improve your aural skills with the Helices plug-in.
Free Guitar Synthesiser that shows you the tab and treble clef as you play it.
Tara's Real Audio Input Plugin allows Winamp to play real audio, video, etc.
TAL-Bitcrusher is a common bitcrusher with some useful additions.