Batch renderer renders projects exactly the same way as File/Render window in Realsoft 3D.
To use the batchrenw application, create one or more projects in Realsoft 3D, specify valid file rendering specifications via File/Render menu for them and then save the projects. In batch renderer, add the projects to the project list and click Render All. Batch renderer uses the Realsoft 3D's distributed network renderer so all the options you specify in Realsoft 3D will also work in BatchRenW.
The Servers tab has Autodetect check box. When set, the program will use all available rendering servers for rendering. If not set, then the rendering settings saved with projects determine the servers.