--- a/MIMETypes.st	Sat Mar 05 15:34:48 2016 +0100
+++ b/MIMETypes.st	Sun Mar 06 00:05:41 2016 +0100
@@ -381,7 +381,9 @@
     (rdr := Smalltalk at:#WindowsIconReader) notNil ifTrue:[
         TypeToImageReaderClassMapping       at:'image/bmp'      put:rdr.
         TypeToImageReaderClassMapping       at:'image/x-MS-bmp' put:rdr.
+        TypeToImageReaderClassMapping       at:'image/x-ms-bmp' put:rdr.
         TypeToImageReaderClassMapping       at:'image/x-MS-ico' put:rdr.
+        TypeToImageReaderClassMapping       at:'image/x-ms-ico' put:rdr.
         FileSuffixToImageReaderClassMapping at:'bmp'            put:rdr.
         FileSuffixToImageReaderClassMapping at:'ico'            put:rdr.
     ].