ZennoBox is nothing different than ZennoPoster just wothout Project maker, but everything other is Exactly that same.
If you would like to test then go Register account there https://userarea.zennolab.com/en/Registration.aspx ( other than you have ZennoPoster )
Then login in your main account and go to https://userarea.zennolab.com/en/userarea/Bots.aspx upload any bot there then sell to your before created email for 10$ (price for bot) and you will have ZennoBox in your other account userarea. Download Install and use it Do not install zennoBox on that same PC you have ZennoPoster on. That is it.