diff --git a/src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.cc b/src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.cc
index 6a5d54c82a0..dd0ccc84761 100644
--- a/src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.cc
+++ b/src/core/ext/filters/client_channel/lb_policy/grpclb/proto/grpc/lb/v1/load_balancer.pb.cc
@@ -1,3 +1,20 @@
+/*
+ *
+ * Copyright 2017 gRPC authors.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ */
 /* Automatically generated nanopb constant definitions */
 /* Generated by nanopb-0.3.7-dev */
 
@@ -80,7 +97,7 @@ const pb_field_t grpc_lb_v1_Server_fields[5] = {
 #if !defined(PB_FIELD_32BIT)
 /* If you get an error here, it means that you need to define PB_FIELD_32BIT
  * compile-time option. You can do that in pb.h or on compiler command line.
- * 
+ *
  * The reason you need to do this is that some of your messages contain tag
  * numbers or field sizes that are larger than what can fit in 8 or 16 bit
  * field descriptors.
@@ -91,7 +108,7 @@ PB_STATIC_ASSERT((pb_membersize(grpc_lb_v1_LoadBalanceRequest, initial_request)
 #if !defined(PB_FIELD_16BIT) && !defined(PB_FIELD_32BIT)
 /* If you get an error here, it means that you need to define PB_FIELD_16BIT
  * compile-time option. You can do that in pb.h or on compiler command line.
- * 
+ *
  * The reason you need to do this is that some of your messages contain tag
  * numbers or field sizes that are larger than what can fit in the default
  * 8 bit descriptors.
diff --git a/src/core/lib/iomgr/socket_windows.cc b/src/core/lib/iomgr/socket_windows.cc
index a0d731b9424..8c7f7cf683d 100644
--- a/src/core/lib/iomgr/socket_windows.cc
+++ b/src/core/lib/iomgr/socket_windows.cc
@@ -38,7 +38,7 @@
 
 grpc_winsocket *grpc_winsocket_create(SOCKET socket, const char *name) {
   char *final_name;
-  grpc_winsocket *r = gpr_malloc(sizeof(grpc_winsocket));
+  grpc_winsocket *r = (grpc_winsocket *)gpr_malloc(sizeof(grpc_winsocket));
   memset(r, 0, sizeof(grpc_winsocket));
   r->socket = socket;
   gpr_mu_init(&r->state_mu);
diff --git a/src/core/lib/iomgr/tcp_windows.cc b/src/core/lib/iomgr/tcp_windows.cc
index 2cbb97403b0..9752a931e86 100644
--- a/src/core/lib/iomgr/tcp_windows.cc
+++ b/src/core/lib/iomgr/tcp_windows.cc
@@ -158,7 +158,7 @@ static void tcp_ref(grpc_tcp *tcp) { gpr_ref(&tcp->refcount); }
 
 /* Asynchronous callback from the IOCP, or the background thread. */
 static void on_read(grpc_exec_ctx *exec_ctx, void *tcpp, grpc_error *error) {
-  grpc_tcp *tcp = tcpp;
+  grpc_tcp *tcp = (grpc_tcp*)tcpp;
   grpc_closure *cb = tcp->read_cb;
   grpc_winsocket *socket = tcp->socket;
   grpc_slice sub;
@@ -425,7 +425,7 @@ grpc_endpoint *grpc_tcp_create(grpc_exec_ctx *exec_ctx, grpc_winsocket *socket,
       if (0 == strcmp(channel_args->args[i].key, GRPC_ARG_RESOURCE_QUOTA)) {
         grpc_resource_quota_unref_internal(exec_ctx, resource_quota);
         resource_quota = grpc_resource_quota_ref_internal(
-            channel_args->args[i].value.pointer.p);
+            (grpc_resource_quota*)channel_args->args[i].value.pointer.p);
       }
     }
   }
diff --git a/src/core/lib/iomgr/tcp_windows.h b/src/core/lib/iomgr/tcp_windows.h
index 1c935da2a21..f3697f707c7 100644
--- a/src/core/lib/iomgr/tcp_windows.h
+++ b/src/core/lib/iomgr/tcp_windows.h
@@ -41,7 +41,7 @@ extern "C" {
  */
 grpc_endpoint *grpc_tcp_create(grpc_exec_ctx *exec_ctx, grpc_winsocket *socket,
                                grpc_channel_args *channel_args,
-                               char *peer_string);
+                               const char *peer_string);
 
 grpc_error *grpc_tcp_prepare_socket(SOCKET sock);
 
@@ -49,4 +49,4 @@ grpc_error *grpc_tcp_prepare_socket(SOCKET sock);
 }
 #endif
 
-#endif /* GRPC_CORE_LIB_IOMGR_TCP_WINDOWS_H */
\ No newline at end of file
+#endif /* GRPC_CORE_LIB_IOMGR_TCP_WINDOWS_H */