The Adobe Flash player appears to leave .sol files on my PC. What are they? Tim Stillwell
They're SharedObject Local files that Adobe Flash uses to store data on your hard drive. This can include settings and video or game data. See Adobe support for an explanation of how they can be created. Flash can store up to 100K per site without asking for permission. However, you can control it. Right-click on any Flash object, such as a YouTube video, and select Settings. The Local Storage section provides a slider so you can choose how much the site can take, from none to unlimited, and see how much space it's using.