Single-tasking command-line programs in Absolute (&FF8) and BASIC (&FFB) form suspend multi-tasking when run from the Desktop. It is often better to run them in a TaskWindow. TaskApp (&AA6) and TskBasic (&AA5) automatically open a TaskWindow when they are double-clicked.

However, when these filetypes are run from outside the desktop (F12) or from inside an existing TaskWindow (Ctrl-F12) they run normally, without attempting to open another TaskWindow.

This makes these filetypes ideal for library functions, small utilities and ported command-line programs.

The existing filetypes TaskObey (&FD7) and TaskExec (&FD6) are enhanced to work the same way, and a new *Command is provided – *InAWindow – which can be used to launch any file or *Command, opening a TaskWindow only if necessary.