diff --git a/win32/deps/zlib/build-x64.bat b/win32/deps/zlib/build-x64.bat
new file mode 100644
index 00000000..07de2c8e
--- /dev/null
+++ b/win32/deps/zlib/build-x64.bat
@@ -0,0 +1,33 @@
+:: run this from a VS x64 command prompt
+@echo off
+
+SET PACKAGE_NAME=zlib-1.2.7
+
+nmake -f win32\Makefile.msc clean
+nmake -f win32\Makefile.msc AS=ml64 LOC="-I. -I.\win32 -DASMV -DASMINF" OBJA="inffasx64.obj gvmat64.obj inffas8664.obj"
+set ZLIB_SRC=%cd%
+set ZLIB_DEST=%cd%-x64
+nmake -f win32\Makefile.msc test
+echo.Press return when ready to install!
+pause
+
+rmdir /q /s %ZLIB_DEST%
+mkdir %ZLIB_DEST%
+mkdir %ZLIB_DEST%\bin
+mkdir %ZLIB_DEST%\include
+mkdir %ZLIB_DEST%\lib
+copy zlib.h %ZLIB_DEST%\include
+copy zconf.h %ZLIB_DEST%\include
+copy zdll.lib %ZLIB_DEST%\lib
+copy zlib1.dll %ZLIB_DEST%\bin
+copy README %ZLIB_DEST%\LICENSE.ZLIB
+nmake -f win32\Makefile.msc clean
+
+cd %ZLIB_DEST%
+set PATH=%PATH%;%ProgramFiles%\7-zip
+7z a ..\%PACKAGE_NAME%-x64.7z *
+cd %ZLIB_SRC%
+rmdir /q /s %ZLIB_DEST%
+
+echo.Finished!
+pause
diff --git a/win32/deps/zlib/build-x86.bat b/win32/deps/zlib/build-x86.bat
index fd0b685f..5c94e851 100644
--- a/win32/deps/zlib/build-x86.bat
+++ b/win32/deps/zlib/build-x86.bat
@@ -3,11 +3,11 @@
 
 SET PACKAGE_NAME=zlib-1.2.7
 
-nmake -f win32\makefile.msc clean
-nmake -f win32\makefile.msc LOC="-DASMV -DASMINF" OBJA="inffas32.obj match686.obj"
+nmake -f win32\Makefile.msc clean
+nmake -f win32\Makefile.msc LOC="-DASMV -DASMINF" OBJA="inffas32.obj match686.obj"
 set ZLIB_SRC=%cd%
 set ZLIB_DEST=%cd%-x86
-nmake -f win32\makefile.msc test
+nmake -f win32\Makefile.msc test
 echo.Press return when ready to install!
 pause
 
@@ -21,7 +21,7 @@ copy zconf.h %ZLIB_DEST%\include
 copy zdll.lib %ZLIB_DEST%\lib
 copy zlib1.dll %ZLIB_DEST%\bin
 copy README %ZLIB_DEST%\LICENSE.ZLIB
-nmake -f win32\makefile.msc clean
+nmake -f win32\Makefile.msc clean
 
 cd %ZLIB_DEST%
 set PATH=%PATH%;%ProgramFiles%\7-zip