Vienna Ensemble Pro VS SAVIHost

Blue Cat's PatchWork - Blue Cat's PatchWork is a universal plug-ins patchbay and multi FX that can host up to 64 VST, VST3, Audio Unit or built-in plug-ins into any Digital Audio Workstation (DAW) in a single instance, with both serial and parallel routing options.

VSTHost - Hostprogram for VST-Plugins with ASIO-Support

Cantabile - Plugin host for live performance.

Gig Performer - Gig Performer is a cross-platform audio plugin host for live music performances

DDMF Metaplugin - Metaplugin is a plugin that loads other plugins. As simple as that. Build your own effect networks with this plugin wrapper using any VST/VST3 (and AU, if you’re on Mac) effect you already have on your harddisk.

Blue Cat MB-7 Mixer - Blue Cat's MB-7 Mixer is a unique plug-in that splits the signal into several frequency bands and lets you re-mix and process them as if they were separate tracks: change levels, apply panning, add built-in effects, or even third party plug-ins.