image with system and hidden attributes crashes xnview

[Max12345]

Opening a file (tried jpg and bmp) from a directory containing only files
with System and Hidden file attributes results in a crash.

Creating a new image file and using the 'attrib' command line program to
mark the attributes ( `attrib +H +S file.jpg` ) results in the crash, so it
doesn't seem to be particular to the image file being opened.

(XnView 1.95.3 on XP SP3)