Before diving into the installation, it is crucial to understand the architectural constraints. This is the most critical factor when searching for the Auto-Tune Evo VST for this specific DAW.
Here is the hard truth: (and very early VST 2.3 at best). Auto-Tune EVO was built for VST 2.4. If you just drop the Auto-Tune EVO.dll into your C:\Program Files\Adobe\Audition 1.5\Plug-ins folder, one of three things will happen: auto-tune evo vst adobe audition 1.5