Actual Transparent Window software (version 8.11.1) is a tool that allows users to customize the transparency of any window or application on their desktop. With this software, users can make windows transparent, set transparency levels, and apply specific transparency settings to individual windows. Additionally, the software includes features such as window roll-up, which allows users to minimize a window to just its title bar, and a ghost mode, which allows users to make a window click-through and transparent.