diff --git a/cmake/externals/glew/CMakeLists.txt b/cmake/externals/glew/CMakeLists.txt
index b82faf19c9..9d3bc2f816 100644
--- a/cmake/externals/glew/CMakeLists.txt
+++ b/cmake/externals/glew/CMakeLists.txt
@@ -8,7 +8,7 @@ include(ExternalProject)
 ExternalProject_Add(
   ${EXTERNAL_NAME}
   URL http://hifi-public.s3.amazonaws.com/dependencies/glew_simple.zip
-  URL_MD5 95a97d3690aa6ba8f1cf5941880efbf6
+  URL_MD5 0507dc08337a82a5e7ecbc5417f92cc1
   CONFIGURE_COMMAND CMAKE_ARGS ${ANDROID_CMAKE_ARGS} -DCMAKE_INSTALL_PREFIX:PATH=<INSTALL_DIR>
   LOG_DOWNLOAD 1
   LOG_CONFIGURE 1
diff --git a/cmake/externals/zlib/CMakeLists.txt b/cmake/externals/zlib/CMakeLists.txt
new file mode 100644
index 0000000000..69dbca714d
--- /dev/null
+++ b/cmake/externals/zlib/CMakeLists.txt
@@ -0,0 +1,28 @@
+
+if (WIN32)
+  set(EXTERNAL_NAME zlib)
+  string(TOUPPER ${EXTERNAL_NAME} EXTERNAL_NAME_UPPER)
+
+  include(ExternalProject)
+  ExternalProject_Add(
+    ${EXTERNAL_NAME}
+    URL http://zlib.net/zlib128.zip
+    URL_MD5 126f8676442ffbd97884eb4d6f32afb4
+    INSTALL_COMMAND ""
+    LOG_DOWNLOAD 1
+  )
+
+  # Hide this external target (for ide users)
+  set_target_properties(${EXTERNAL_NAME} PROPERTIES FOLDER "hidden/externals")
+
+  ExternalProject_Get_Property(${EXTERNAL_NAME} SOURCE_DIR)
+
+  set(${EXTERNAL_NAME_UPPER}_INCLUDE_DIRS ${SOURCE_DIR}/include CACHE PATH "List of zlib include directories")
+
+  ExternalProject_Get_Property(${EXTERNAL_NAME} BINARY_DIR)
+
+  set(${EXTERNAL_NAME_UPPER}_DLL_PATH ${BINARY_DIR}/Release CACHE FILEPATH "Location of GLEW DLL")
+  set(${EXTERNAL_NAME_UPPER}_LIBRARY_RELEASE ${BINARY_DIR}/Release/zlib.lib CACHE FILEPATH "Location of ZLib release library")
+  set(${EXTERNAL_NAME_UPPER}_LIBRARY_DEBUG "" CACHE FILEPATH "Location of ZLib debug library")
+
+endif ()
\ No newline at end of file