diff --git a/config.w32 b/config.w32
index 7c407e848a4..c9f30d655a6 100644
--- a/config.w32
+++ b/config.w32
@@ -640,4 +640,133 @@ if (PHP_GRPC != "no") {
     "/I"+configure_module_dirname+"\\src\\php\\ext\\grpc "+
     "/I"+configure_module_dirname+"\\third_party\\boringssl\\include "+
     "/I"+configure_module_dirname+"\\third_party\\zlib");
+
+  base_dir = get_define('BUILD_DIR');
+  FSO.CreateFolder(base_dir+"\\ext");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\boringssl");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\census");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\census\\gen");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\client_channel");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\client_channel\\lb_policy");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\client_channel\\lb_policy\\grpclb");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\client_channel\\lb_policy\\grpclb\\proto");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\client_channel\\lb_policy\\grpclb\\proto\\grpc");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\client_channel\\lb_policy\\grpclb\\proto\\grpc\\lb");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\client_channel\\lb_policy\\grpclb\\proto\\grpc\\lb\\v1");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\client_channel\\lb_policy\\pick_first");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\client_channel\\lb_policy\\round_robin");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\client_channel\\resolver");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\client_channel\\resolver\\dns");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\client_channel\\resolver\\dns\\c_ares");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\client_channel\\resolver\\dns\\native");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\client_channel\\resolver\\sockaddr");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\deadline");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\http");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\http\\client");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\http\\message_compress");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\http\\server");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\load_reporting");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\max_age");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\message_size");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\filters\\workarounds");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\transport");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\transport\\chttp2");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\transport\\chttp2\\alpn");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\transport\\chttp2\\client");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\transport\\chttp2\\client\\insecure");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\transport\\chttp2\\client\\secure");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\transport\\chttp2\\server");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\transport\\chttp2\\server\\insecure");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\transport\\chttp2\\server\\secure");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\ext\\transport\\chttp2\\transport");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\channel");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\compression");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\debug");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\http");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\iomgr");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\json");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\profiling");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\security");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\security\\context");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\security\\credentials");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\security\\credentials\\composite");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\security\\credentials\\fake");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\security\\credentials\\google_default");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\security\\credentials\\iam");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\security\\credentials\\jwt");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\security\\credentials\\oauth2");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\security\\credentials\\plugin");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\security\\credentials\\ssl");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\security\\transport");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\security\\util");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\slice");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\support");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\surface");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\lib\\transport");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\plugin_registry");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\core\\tsi");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\php");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\php\\ext");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\src\\php\\ext\\grpc");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\aes");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\asn1");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\base64");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\bio");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\bn");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\bn\\asm");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\buf");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\bytestring");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\chacha");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\cipher");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\cmac");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\conf");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\curve25519");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\des");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\dh");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\digest");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\dsa");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\ec");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\ecdh");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\ecdsa");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\engine");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\err");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\evp");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\hkdf");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\hmac");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\lhash");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\md4");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\md5");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\modes");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\newhope");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\obj");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\pem");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\pkcs8");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\poly1305");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\rand");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\rc4");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\rsa");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\sha");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\stack");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\x509");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\crypto\\x509v3");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\boringssl\\ssl");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\nanopb");
+  FSO.CreateFolder(base_dir+"\\ext\\grpc\\third_party\\zlib");
+  _build_dirs = new Array();
+  for (i = 0; i < build_dirs.length; i++) {
+    if (build_dirs[i].indexOf('grpc') == -1) {
+      _build_dirs[_build_dirs.length] = build_dirs[i];
+    }
+  }
+  build_dirs = _build_dirs;
+
 }
diff --git a/src/php/ext/grpc/version.h b/src/php/ext/grpc/version.h
index 993ef2de274..0d5d36d9cf4 100644
--- a/src/php/ext/grpc/version.h
+++ b/src/php/ext/grpc/version.h
@@ -35,6 +35,6 @@
 #ifndef VERSION_H
 #define VERSION_H
 
-#define PHP_GRPC_VERSION "1.4.0"
+#define PHP_GRPC_VERSION "1.4.0RC1"
 
 #endif /* VERSION_H */
diff --git a/templates/config.w32.template b/templates/config.w32.template
index c822eae097a..4edef963f2c 100644
--- a/templates/config.w32.template
+++ b/templates/config.w32.template
@@ -28,4 +28,40 @@
       "/I"+configure_module_dirname+"\\src\\php\\ext\\grpc "+
       "/I"+configure_module_dirname+"\\third_party\\boringssl\\include "+
       "/I"+configure_module_dirname+"\\third_party\\zlib");
+  <%
+    dirs = {}
+    for lib in libs:
+      if lib.name in php_config_m4.get('deps', []) and lib.name != 'ares':
+        for source in lib.src:
+          tmp = source
+          prev = ''
+          while (True):
+            idx = tmp.find('/');
+            if (idx == -1):
+              break
+            dirs[prev + '\\\\' + tmp[:idx]] = 1
+            prev += ('\\\\' + tmp[:idx]);
+            tmp = tmp[idx+1:]
+            
+    dirs['\\\\src'] = 1;
+    dirs['\\\\src\\\\php'] = 1;
+    dirs['\\\\src\\\\php\\\\ext'] = 1;
+    dirs['\\\\src\\\\php\\\\ext\\\\grpc'] = 1;
+    dirs = dirs.keys()
+    dirs.sort()
+  %>
+    base_dir = get_define('BUILD_DIR');
+    FSO.CreateFolder(base_dir+"\\ext");
+    FSO.CreateFolder(base_dir+"\\ext\\grpc");
+    % for dir in dirs:
+    FSO.CreateFolder(base_dir+"\\ext\\grpc${dir}");
+    % endfor
+    _build_dirs = new Array();
+    for (i = 0; i < build_dirs.length; i++) {
+      if (build_dirs[i].indexOf('grpc') == -1) {
+        _build_dirs[_build_dirs.length] = build_dirs[i];
+      }
+    }
+    build_dirs = _build_dirs;
+
   }
diff --git a/templates/src/php/ext/grpc/version.h.template b/templates/src/php/ext/grpc/version.h.template
index 828ea69296c..10977a83c2a 100644
--- a/templates/src/php/ext/grpc/version.h.template
+++ b/templates/src/php/ext/grpc/version.h.template
@@ -37,6 +37,6 @@
   #ifndef VERSION_H
   #define VERSION_H
 
-  #define PHP_GRPC_VERSION "${settings.php_version.php_composer()}"
+  #define PHP_GRPC_VERSION "${settings.php_version.php()}"
 
   #endif /* VERSION_H */