Savihost is a hospitalize of plugin VST / VSTI in English consisting of a virtual keyboard and an entrance midday (for the audio plugin).
It is enough to reappoint software (savihost.exe) to the same name as DLL of your plugin, and to throw it to start.
He also reads files FXP (presets).
He can record your sounds under direct format WAV.
Similar to minihost, VSTHost etc...