diff --git a/expat/Changes b/expat/Changes
index d423b6a7..36c96158 100644
--- a/expat/Changes
+++ b/expat/Changes
@@ -8,6 +8,8 @@ Release x.x.x xxx xxx xx xxxx
                     when called from inside of an end element handler
 
         Other changes:
+            #325  Windows: Drop support for Visual Studio <=7.1/2003
+                    and document supported compilers in README.md
             #286  Windows: Remove COM code from xmlwf; in case it turns
                     out needed later, there will be a dedicated repository
                     below https://github.com/libexpat/ for that code
diff --git a/expat/README.md b/expat/README.md
index fd3911eb..762b515b 100644
--- a/expat/README.md
+++ b/expat/README.md
@@ -13,6 +13,11 @@ are called when the parser discovers the associated structures in the
 document being parsed.  A start tag is an example of the kind of
 structures for which you may register handlers.
 
+Expat supports the following compilers:
+- GNU GCC >=4.5
+- LLVM Clang >=3.5
+- Microsoft Visual Studio >=8.0/2005
+
 Windows users should use the
 [`expat_win32` package](https://sourceforge.net/projects/expat/files/expat_win32/),
 which includes both precompiled libraries and executables, and source code for
diff --git a/expat/examples/elements.c b/expat/examples/elements.c
index ed44b7df..dfc434f7 100644
--- a/expat/examples/elements.c
+++ b/expat/examples/elements.c
@@ -38,11 +38,7 @@
 #include <expat.h>
 
 #ifdef XML_LARGE_SIZE
-#  if defined(XML_USE_MSC_EXTENSIONS) && _MSC_VER < 1400
-#    define XML_FMT_INT_MOD "I64"
-#  else
-#    define XML_FMT_INT_MOD "ll"
-#  endif
+#  define XML_FMT_INT_MOD "ll"
 #else
 #  define XML_FMT_INT_MOD "l"
 #endif
diff --git a/expat/examples/outline.c b/expat/examples/outline.c
index 2136c3d3..d996b8e3 100644
--- a/expat/examples/outline.c
+++ b/expat/examples/outline.c
@@ -36,11 +36,7 @@
 #include <expat.h>
 
 #ifdef XML_LARGE_SIZE
-#  if defined(XML_USE_MSC_EXTENSIONS) && _MSC_VER < 1400
-#    define XML_FMT_INT_MOD "I64"
-#  else
-#    define XML_FMT_INT_MOD "ll"
-#  endif
+#  define XML_FMT_INT_MOD "ll"
 #else
 #  define XML_FMT_INT_MOD "l"
 #endif
diff --git a/expat/lib/expat_external.h b/expat/lib/expat_external.h
index 48a8e5ff..b3b6e74d 100644
--- a/expat/lib/expat_external.h
+++ b/expat/lib/expat_external.h
@@ -35,10 +35,6 @@
 
 /* External API definitions */
 
-#if defined(_MSC_EXTENSIONS) && ! defined(__BEOS__) && ! defined(__CYGWIN__)
-#  define XML_USE_MSC_EXTENSIONS 1
-#endif
-
 /* Expat tries very hard to make the API boundary very specifically
    defined.  There are two macros defined to control this boundary;
    each of these can be defined before including this header to
@@ -85,7 +81,7 @@
 #  ifndef XML_BUILDING_EXPAT
 /* using Expat from an application */
 
-#    ifdef XML_USE_MSC_EXTENSIONS
+#    if defined(_MSC_EXTENSIONS) && ! defined(__BEOS__) && ! defined(__CYGWIN__)
 #      define XMLIMPORT __declspec(dllimport)
 #    endif
 
@@ -148,13 +144,8 @@ typedef char XML_LChar;
 #endif   /* XML_UNICODE */
 
 #ifdef XML_LARGE_SIZE /* Use large integers for file/stream positions. */
-#  if defined(XML_USE_MSC_EXTENSIONS) && _MSC_VER < 1400
-typedef __int64 XML_Index;
-typedef unsigned __int64 XML_Size;
-#  else
 typedef long long XML_Index;
 typedef unsigned long long XML_Size;
-#  endif
 #else
 typedef long XML_Index;
 typedef unsigned long XML_Size;
diff --git a/expat/xmlwf/xmlfile.h b/expat/xmlwf/xmlfile.h
index 3a7d81a2..6e5d5b49 100644
--- a/expat/xmlwf/xmlfile.h
+++ b/expat/xmlwf/xmlfile.h
@@ -34,11 +34,7 @@
 #define XML_EXTERNAL_ENTITIES 02
 
 #ifdef XML_LARGE_SIZE
-#  if defined(XML_USE_MSC_EXTENSIONS) && _MSC_VER < 1400
-#    define XML_FMT_INT_MOD "I64"
-#  else
-#    define XML_FMT_INT_MOD "ll"
-#  endif
+#  define XML_FMT_INT_MOD "ll"
 #else
 #  define XML_FMT_INT_MOD "l"
 #endif