SonicXTC has released version 3.0 of the freeware B-Line 303 VST synthesizer for Windows.
New in Version 3 is the optional Groove Step Sequencer that can add additional enhancements to your tracks.
The latest version also includes an improved Stereo Doppler Chorus effect (pitch shift/chorus effect) and a Stereo Echo effect to complete the Acid bassline experience.
Price: Free.