The Kix DEL command does not seem to want to delete any files marked as read-only.
No error is returned, the file marked for deletion in the script simply doesn't get deleted.

For example, the file test.txt is read-only
The Kix command:
DEL "test.txt"
Will not delete the file, nor will
DEL "test.txt" /h

In order to delete the file, I have to use
shell "cmd /c del test.txt /a:r"

Is there a way to delete read-only files without having to use a shell command?