What to do with executable text files when they are activated (single or double clicked). Possible values are "launch" to launch them as programs, "ask" to ask what to do via a dialog, and "display" to display them as text files.
For users with mice that have buttons for "Forward" and "Back", this key will set which button activates the "Forward" command in a browser window. Possible values range between 6 and 14.
For users with mice that have buttons for "Forward" and "Back", this key will set which button activates the "Back" command in a browser window. Possible values range between 6 and 14.
Speed tradeoff for when to show an image file as a thumbnail. If set to "always" then always thumbnail, even if the folder is on a remote server. If set to "local-only" then only show thumbnails for local file systems. If set to "never" then never bother to thumbnail images, just use a generic icon.
Images over this size (in bytes) won't be thumbnailed. The purpose of this setting is to avoid thumbnailing large images that may take a long time to load or use lots of memory.