ViewPlayCap is a lightweight software commonly used to operate USB microscopes and endoscopes, downloadable via http://www51scopecn/files/setup.rar for Windows systems. The installation involves downloading the RAR archive, extracting the contents, and running the setup file, often requiring users to bypass browser security warnings due to the site's unencrypted HTTP protocol. Users can also utilize alternative software like the Windows Camera App or VLC Media Player for safer, standard UVC camera operation.