diff -up ZipArchive-4.1.1/ZipArchive/DeflateCompressor.cpp.system-zlib ZipArchive-4.1.1/ZipArchive/DeflateCompressor.cpp
--- ZipArchive-4.1.1/ZipArchive/DeflateCompressor.cpp.system-zlib	2011-06-28 09:45:36.000000000 +0200
+++ ZipArchive-4.1.1/ZipArchive/DeflateCompressor.cpp	2011-12-23 11:07:14.000000000 +0100
@@ -14,7 +14,7 @@
 
 #include "stdafx.h"
 #include "DeflateCompressor.h"
-#include "zlib/deflate.h"
+#include <zlib.h>
 
 namespace ZipArchiveLib
 {
diff -up ZipArchive-4.1.1/ZipArchive/DeflateCompressor.h.system-zlib ZipArchive-4.1.1/ZipArchive/DeflateCompressor.h
--- ZipArchive-4.1.1/ZipArchive/DeflateCompressor.h.system-zlib	2011-06-28 09:45:36.000000000 +0200
+++ ZipArchive-4.1.1/ZipArchive/DeflateCompressor.h	2011-12-23 11:07:14.000000000 +0100
@@ -28,7 +28,7 @@
 #include "ZipExport.h"
 #include "BaseLibCompressor.h"
 #include "ZipException.h"
-#include "zlib/zlib.h"
+#include <zlib.h>
 
 namespace ZipArchiveLib
 {
diff -up ZipArchive-4.1.1/ZipArchive/_platform.h.system-zlib ZipArchive-4.1.1/ZipArchive/_platform.h
--- ZipArchive-4.1.1/ZipArchive/_platform.h.system-zlib	2011-12-23 11:07:14.000000000 +0100
+++ ZipArchive-4.1.1/ZipArchive/_platform.h	2011-12-23 11:07:14.000000000 +0100
@@ -63,4 +63,19 @@
 	#error Using MFC under a non-Windows platform is not supported
 #endif
 
+// revert symbol names back to system zlib
+#define zarch_alloc_func alloc_func
+#define zarch_free_func free_func
+#define zarch_uInt uInt
+#define zarch_Bytef Bytef
+#define zarch_z_stream z_stream
+#define zarch_crc32 crc32
+#define zarch_deflateInit2_ deflateInit2_
+#define zarch_deflate deflate
+#define zarch_deflateEnd deflateEnd
+#define zarch_inflateInit2_ inflateInit2_
+#define zarch_inflate inflate
+#define zarch_inflateEnd inflateEnd
+#define zarch_get_crc_table get_crc_table
+
 #endif // !defined(ZIPARCHIVE_PLATFORM_DOT_H)
diff -up ZipArchive-4.1.1/ZipArchive/ZipCrc32Cryptograph.h.system-zlib ZipArchive-4.1.1/ZipArchive/ZipCrc32Cryptograph.h
--- ZipArchive-4.1.1/ZipArchive/ZipCrc32Cryptograph.h.system-zlib	2011-06-28 09:45:36.000000000 +0200
+++ ZipArchive-4.1.1/ZipArchive/ZipCrc32Cryptograph.h	2011-12-23 11:07:14.000000000 +0100
@@ -25,7 +25,7 @@
 	#pragma once
 #endif
 
-#include "zlib/zlib.h"
+#include <zlib.h>
 
 #include "ZipCryptograph.h"
 #include "ZipFileHeader.h"
diff -up ZipArchive-4.1.1/ZipArchive/ZipException.cpp.system-zlib ZipArchive-4.1.1/ZipArchive/ZipException.cpp
--- ZipArchive-4.1.1/ZipArchive/ZipException.cpp.system-zlib	2011-06-28 09:45:36.000000000 +0200
+++ ZipArchive-4.1.1/ZipArchive/ZipException.cpp	2011-12-23 11:07:14.000000000 +0100
@@ -14,7 +14,7 @@
 
 #include "stdafx.h"
 #include "ZipException.h"
-#include "zlib/zlib.h"
+#include <zlib.h>
 #include <errno.h>
 
 //////////////////////////////////////////////////////////////////////
diff -up ZipArchive-4.1.1/ZipArchive/ZipFileHeader.cpp.system-zlib ZipArchive-4.1.1/ZipArchive/ZipFileHeader.cpp
--- ZipArchive-4.1.1/ZipArchive/ZipFileHeader.cpp.system-zlib	2011-12-23 11:07:58.000000000 +0100
+++ ZipArchive-4.1.1/ZipArchive/ZipFileHeader.cpp	2011-12-23 11:08:07.000000000 +0100
@@ -22,7 +22,7 @@
 
 #include "ZipCrc32Cryptograph.h"
 #include "BytesWriter.h"
-#include "zlib/zlib.h"
+#include <zlib.h>
 
 #define FILEHEADERSIZE	46
 #define LOCALFILEHEADERSIZE	30