Note: this post is from 2005, outbound links may be broken.
A0 Digital Audio limited free plug-ins
From the A0 Digital Audio website:
A0 Classics are back! for Windows/VST
Get some of the earlier top-selling A0 Digital Audio shareware plug-ins legally and for FREE! The software offered is not freeware and will be available for a limited period of time, until 21 october 2005.
Go to the A0 Digital Audio website and download the package with A0 Parametric Equalizer, Tape Echo II and xFlanger II!