Added an explanation for the directory symlink stuff.

wine.ini

@@ -56,6 +56,10 @@ Temp=e:\
 Path=c:\windows;c:\windows\system;e:\;e:\test;f:\
 Profile=c:\windows\Profiles\Administrator
 GraphicsDriver=x11drv
+; Wine doesn't pass directory symlinks to Windows programs by default.
+; Enabling this may crash some programs that do recursive lookups of a whole
+; subdir tree in case of a symlink pointing back to itself.
+;ShowDirSymlinks=1
 ShellLinker=wineshelllink
 
 # <wineconf>