+.PP
+With the UNIX version of \fB@IMAGEX_PROGNAME@\fR, it is possible to create a WIM
+image containing files with names differing only in case, or files with names
+containing the characters ':', '*', '?', '"', '<', '>', '|', or '\\', which are
+valid on POSIX-compliant filesystems but not Windows. Be warned that such files
+will not be extracted by default by the Windows version of
+\fB@IMAGEX_PROGNAME@\fR, and Microsoft's ImageX might get confused by such
+names.