Chorus + is that sort of dense and harmonically rich chorus that you are very likely to encounter on some older (as old as the 80's) synths.
It's a no brainer plugin with a few controls to deliver a lot from and packed with two flavours at choice, sort of "mild" and "strong", nevertheless if tweaked harder may go from strong to that sort of abusive, heavily modulated type of sound.
The Chorus + is fully automatable and has the ability to store 64 presets.
It ships with a few already pre programmed ones that will show what its all about and may be the starting point to your individual creations.
Installation procedure: Unzip the file, then copy the DLLs into your VstPlugins folder.