Hi,
this won't work because of some security reasons of the browser.
You have to work with the HTTP Server.
You could copy something like this in the config of your http server to allow directoy listing.
#DATEN FolderAlias /Daten /Daten<Directory /Daten>Order allow,denyAllow from allOptions Indexes FollowSymLinks</Directory>
Now you can display the files of the folder 'daten'.
In EGL you could use the HyperLink widget like this:
HyperLink HyperLink{text = "IFS", href = "http://192.168.10.3:80/Daten", target = "_blank"};
Kind Regards!
Marcel-D