ForceFolder is a sandbox setting in Sandboxie.ini which allows to force folder contents to run inside a specific sandbox. If any files or programs in these folders* (or in a sub-folder of one of these folders) are started outside any sandbox, they will be automatically sandboxed into a particular sandbox. For example:
. . . [DefaultBox] ForceFolder=C:\Download ForceFolder=E:\
The first example specifies that files/programs started from the C:\Download folder (or any folders below contained in those folders) will be forced to run sandboxed in the sandbox DefaultBox.
The second example specifies that any files/programs started from drive E will be forced to run sandboxed in the sandbox DefaultBox. For CDROM and DVD drives, this includes forcing the AutoRun programs that are automatically started by Windows.
- Please keep in mind that shortcuts located inside a ForceFolder, that are pointing to a path that is not a ForceFolder, will not start a Sandboxed application. For example: if you place a shortcut inside C:\ForcedFolder and it points to C:\SomeOtherPathThatIsNotForced, then the shortcut will trigger a non-sandboxed application.
Another consideration is that metro apps are not supported. If your default application for opening a specific file type is a Windows Metro app (such as Windows 10 photo viewer), the application will launch outside the Sandbox. For more information regarding Windows Metro apps please see KnownConflicts
See also: ForceProcess. If both a ForceFolder and a ForceProcess are applicable to a program that is starting, the ForceFolder setting takes precedence.