-On UNIX, one can alternatively mount the WIM image with \fB@IMAGEX_PROGNAME@
-mount\fR and then extract the desired files or directories using any standard
-command-line or graphical program.
+On UNIX-like systems that support userspace filesystems with FUSE (e.g. Linux),
+one can alternatively mount the WIM image with \fB@IMAGEX_PROGNAME@ mount\fR and
+then extract the desired files or directories using any standard command-line or
+graphical program.