SAVIHost makes trying out Visual Studio Technology files as simple as launching an application. After downloading the app, you rename the SAVIHost.exe file to the name of your desired plugin. Then, the plugin is ready for executable use. In this file, an instrument program can be played on sound you specify.
SAVIHost is a reliable application that takes the complexity out of testing VST plugins. You can quickly and easily test out your instrument and choose what sound would be the best for you before you start creating. Beginners will enjoy the capabilities of this application as it isn't too technical, but also has advanced sound transformation features that appeal to experienced users. You can also download the free software and find additional documentation online.
The SAVIHostHost is probably the easiest host to use, since its VITA files can easily be run as executable programs.