For VST plug-ins on Windows platform:
You should unpack ZIP file you have downloaded into VstPlugins
folder - the one which is connected with the audio application
you are using and where this application expects VST plug-ins
to reside (it is also suggested to create the 'Voxengo'
sub-folder there, and unpack archive there instead of the main
VstPlugins folder). After this has been done you will need to
order your audio application to rescan plug-ins, or if that
option is unavailable you will need to re-start this
application.
For VST/AudioUnit plug-ins on Mac OS X platform:
You should mount the according DMG archive (which you already
did since you are reading this file) and copy the 'component' or
'vst' package from it into the according plug-in folder located
in the '/Library/Audio/Plug-Ins/' folder on the harddisk. After
this has been done you will need to order your audio application
to rescan plug-ins, or if that option is unavailable you will
need to re-start this application.