diff --git a/Makefile b/Makefile
index eb1efdf7513..69e3c679aaa 100644
--- a/Makefile
+++ b/Makefile
@@ -550,6 +550,7 @@ LIBGPR_SRC = \
     src/core/support/string_win32.c \
     src/core/support/sync.c \
     src/core/support/sync_posix.c \
+    src/core/support/sync_win32.c \
     src/core/support/thd_posix.c \
     src/core/support/thd_win32.c \
     src/core/support/time.c \
diff --git a/build.json b/build.json
index 3769fe991a7..e185d668fcc 100644
--- a/build.json
+++ b/build.json
@@ -34,6 +34,7 @@
         "src/core/support/string_win32.c",
         "src/core/support/sync.c",
         "src/core/support/sync_posix.c",
+        "src/core/support/sync_win32.c",
         "src/core/support/thd_posix.c",
         "src/core/support/thd_win32.c",
         "src/core/support/time.c",
diff --git a/include/grpc/support/atm_win32.h b/include/grpc/support/atm_win32.h
index 9b2f0e84bae..d32ffd46a29 100644
--- a/include/grpc/support/atm_win32.h
+++ b/include/grpc/support/atm_win32.h
@@ -57,18 +57,27 @@ static __inline void gpr_atm_rel_store(gpr_atm *p, gpr_atm value) {
 static __inline int gpr_atm_no_barrier_cas(gpr_atm *p, gpr_atm o, gpr_atm n) {
   /* InterlockedCompareExchangePointerNoFence() not available on vista or
      windows7 */
-  return o == (gpr_atm)InterlockedCompareExchangePointerAcquire(p, (void *)n,
-                                                                (void *)o);
+#ifdef GPR_ARCH_64
+  return o == (gpr_atm)InterlockedCompareExchangeAcquire64(p, n, o);
+#else
+  return o == (gpr_atm)InterlockedCompareExchangeAcquire(p, n, o);
+#endif
 }
 
 static __inline int gpr_atm_acq_cas(gpr_atm *p, gpr_atm o, gpr_atm n) {
-  return o == (gpr_atm)InterlockedCompareExchangePointerAcquire(p, (void *)n,
-                                                                (void *)o);
+#ifdef GPR_ARCH_64
+  return o == (gpr_atm)InterlockedCompareExchangeAcquire64(p, n, o);
+#else
+  return o == (gpr_atm)InterlockedCompareExchangeAcquire(p, n, o);
+#endif
 }
 
 static __inline int gpr_atm_rel_cas(gpr_atm *p, gpr_atm o, gpr_atm n) {
-  return o == (gpr_atm)InterlockedCompareExchangePointerRelease(p, (void *)n,
-                                                                (void *)o);
+#ifdef GPR_ARCH_64
+  return o == (gpr_atm)InterlockedCompareExchangeRelease64(p, n, o);
+#else
+  return o == (gpr_atm)InterlockedCompareExchangeRelease(p, n, o);
+#endif
 }
 
 static __inline gpr_atm gpr_atm_no_barrier_fetch_add(gpr_atm *p,
@@ -86,9 +95,12 @@ static __inline gpr_atm gpr_atm_full_fetch_add(gpr_atm *p, gpr_atm delta) {
   gpr_atm old;
   do {
     old = *p;
-  } while (old != (gpr_atm)InterlockedCompareExchangePointer(
-                      p, (void *)(old + delta), (void *)old));
+#ifdef GPR_ARCH_64
+  } while (old != (gpr_atm)InterlockedCompareExchange64(p, old + delta, old));
+#else
+  } while (old != (gpr_atm)InterlockedCompareExchange(p, old + delta, old));
+#endif
   return old;
 }
 
-#endif  /* __GRPC_SUPPORT_ATM_WIN32_H__ */
+#endif /* __GRPC_SUPPORT_ATM_WIN32_H__ */
diff --git a/src/core/support/histogram.c b/src/core/support/histogram.c
index a3ecd3e1528..c5e56080492 100644
--- a/src/core/support/histogram.c
+++ b/src/core/support/histogram.c
@@ -127,7 +127,7 @@ void gpr_histogram_add(gpr_histogram *h, double x) {
 }
 
 int gpr_histogram_merge(gpr_histogram *dst, gpr_histogram *src) {
-  int i;
+  size_t i;
   if ((dst->num_buckets != src->num_buckets) ||
       (dst->multiplier != src->multiplier)) {
     /* Fail because these histograms don't match */
@@ -152,8 +152,8 @@ static double threshold_for_count_below(gpr_histogram *h, double count_below) {
   double count_so_far;
   double lower_bound;
   double upper_bound;
-  int lower_idx;
-  int upper_idx;
+  size_t lower_idx;
+  size_t upper_idx;
 
   GPR_ASSERT(h->count >= 1);
 
diff --git a/src/core/support/log_win32.c b/src/core/support/log_win32.c
index f5710fa1794..fb2fc0c2395 100644
--- a/src/core/support/log_win32.c
+++ b/src/core/support/log_win32.c
@@ -40,8 +40,8 @@
 #include <stdarg.h>
 
 /* Simple starter implementation */
-void gpr_log(char *file, int line, gpr_log_severity severity, char *format,
-             ...) {
+void gpr_log(const char *file, int line, gpr_log_severity severity,
+             const char *format, ...) {
   va_list args;
   va_start(args, format);
 
diff --git a/src/core/support/string_win32.c b/src/core/support/string_win32.c
index 74b10280eb6..1c4c8547dc9 100644
--- a/src/core/support/string_win32.c
+++ b/src/core/support/string_win32.c
@@ -50,7 +50,7 @@ int gpr_asprintf(char **strp, const char *format, ...) {
 
   /* Determine the length. */
   va_start(args, format);
-  ret = vscprintf(format, args);
+  ret = _vscprintf(format, args);
   va_end(args);
   if (!(0 <= ret && ret < ~(size_t)0)) {
     *strp = NULL;
diff --git a/src/core/support/sync_posix.c b/src/core/support/sync_posix.c
index 257a7fbf4eb..7f0e4a95a43 100644
--- a/src/core/support/sync_posix.c
+++ b/src/core/support/sync_posix.c
@@ -33,6 +33,10 @@
 
 /* Posix gpr synchroization support code. */
 
+#include <grpc/support/port_platform.h>
+
+#ifdef GPR_POSIX_SYNC
+
 #include <errno.h>
 #include <grpc/support/log.h>
 #include <grpc/support/sync.h>
@@ -80,3 +84,5 @@ void gpr_cv_broadcast(gpr_cv *cv) {
 void gpr_once_init(gpr_once *once, void (*init_function)(void)) {
   GPR_ASSERT(pthread_once(once, init_function) == 0);
 }
+
+#endif /* GRP_POSIX_SYNC */
diff --git a/src/core/support/sync_win32.c b/src/core/support/sync_win32.c
index 63dd4eb708c..eadaa970c98 100644
--- a/src/core/support/sync_win32.c
+++ b/src/core/support/sync_win32.c
@@ -33,6 +33,10 @@
 
 /* Win32 code for gpr synchronization support. */
 
+#include <grpc/support/port_platform.h>
+
+#ifdef GPR_WIN32
+
 #define _WIN32_WINNT 0x0600
 #include <windows.h>
 #include <grpc/support/log.h>
@@ -107,7 +111,7 @@ static void *dummy;
 struct run_once_func_arg {
   void (*init_function)(void);
 };
-static int run_once_func(gpr_once *once, void *v, void **pv) {
+static BOOL CALLBACK run_once_func(gpr_once *once, void *v, void **pv) {
   struct run_once_func_arg *arg = v;
   (*arg->init_function)();
   return 1;
@@ -116,5 +120,7 @@ static int run_once_func(gpr_once *once, void *v, void **pv) {
 void gpr_once_init(gpr_once *once, void (*init_function)(void)) {
   struct run_once_func_arg arg;
   arg.init_function = init_function;
-  InitOnceExecuteOnce(once, &run_once_func, &arg, &dummy);
+  InitOnceExecuteOnce(once, run_once_func, &arg, &dummy);
 }
+
+#endif /* GPR_WIN32 */
diff --git a/src/core/support/time_win32.c b/src/core/support/time_win32.c
index d9abe2dde1b..b9fe5123350 100644
--- a/src/core/support/time_win32.c
+++ b/src/core/support/time_win32.c
@@ -42,8 +42,8 @@
 
 gpr_timespec gpr_now(void) {
   gpr_timespec now_tv;
-  struct __timeb64 now_tb;
-  _ftime64_s(&now_tb);
+  struct __timeb32 now_tb;
+  _ftime32_s(&now_tb);
   now_tv.tv_sec = now_tb.time;
   now_tv.tv_nsec = now_tb.millitm * 1000000;
   return now_tv;
diff --git a/templates/vsprojects/vs2013/vcxproj_defs.include b/templates/vsprojects/vs2013/vcxproj_defs.include
index 37fe97d4eaa..fea86ddf361 100644
--- a/templates/vsprojects/vs2013/vcxproj_defs.include
+++ b/templates/vsprojects/vs2013/vcxproj_defs.include
@@ -47,6 +47,7 @@ project_dict = dict([(p.name, p) for p in projects])
     <UseDebugLibraries>true</UseDebugLibraries>
     <PlatformToolset>v120</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
+    <IntDir>$(Configuration)\$(ProjectName)\</IntDir>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>${get_configuration_type(project.is_library)}</ConfigurationType>
@@ -54,6 +55,7 @@ project_dict = dict([(p.name, p) for p in projects])
     <PlatformToolset>v120</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
+    <IntDir>$(Configuration)\$(ProjectName)\</IntDir>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
@@ -71,7 +73,7 @@ project_dict = dict([(p.name, p) for p in projects])
       <PrecompiledHeader>NotUsing</PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;_USE_32BIT_TIME_T;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>$(SolutionDir)\..\..;$(SolutionDir)\..\..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
@@ -87,7 +89,7 @@ project_dict = dict([(p.name, p) for p in projects])
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;_USE_32BIT_TIME_T;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>$(SolutionDir)\..\..;$(SolutionDir)\..\..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>  
     </ClCompile>
diff --git a/vsprojects/vs2013/gpr.vcxproj b/vsprojects/vs2013/gpr.vcxproj
index f4b30534a64..a7b07c21a32 100644
--- a/vsprojects/vs2013/gpr.vcxproj
+++ b/vsprojects/vs2013/gpr.vcxproj
@@ -21,6 +21,7 @@
     <UseDebugLibraries>true</UseDebugLibraries>
     <PlatformToolset>v120</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
+    <IntDir>$(Configuration)\$(ProjectName)\</IntDir>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>StaticLibrary</ConfigurationType>
@@ -28,6 +29,7 @@
     <PlatformToolset>v120</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
+    <IntDir>$(Configuration)\$(ProjectName)\</IntDir>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
@@ -45,7 +47,7 @@
       <PrecompiledHeader>NotUsing</PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;_USE_32BIT_TIME_T;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>$(SolutionDir)\..\..;$(SolutionDir)\..\..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
@@ -61,7 +63,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;_USE_32BIT_TIME_T;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>$(SolutionDir)\..\..;$(SolutionDir)\..\..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>  
     </ClCompile>
@@ -143,6 +145,8 @@
     </ClCompile>
     <ClCompile Include="..\..\src\core\support\sync_posix.c">
     </ClCompile>
+    <ClCompile Include="..\..\src\core\support\sync_win32.c">
+    </ClCompile>
     <ClCompile Include="..\..\src\core\support\thd_posix.c">
     </ClCompile>
     <ClCompile Include="..\..\src\core\support\thd_win32.c">
diff --git a/vsprojects/vs2013/gpr_cancellable_test.vcxproj b/vsprojects/vs2013/gpr_cancellable_test.vcxproj
index 447d3b78022..890541a86fc 100644
--- a/vsprojects/vs2013/gpr_cancellable_test.vcxproj
+++ b/vsprojects/vs2013/gpr_cancellable_test.vcxproj
@@ -21,6 +21,7 @@
     <UseDebugLibraries>true</UseDebugLibraries>
     <PlatformToolset>v120</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
+    <IntDir>$(Configuration)\$(ProjectName)\</IntDir>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
@@ -28,6 +29,7 @@
     <PlatformToolset>v120</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
+    <IntDir>$(Configuration)\$(ProjectName)\</IntDir>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
@@ -45,7 +47,7 @@
       <PrecompiledHeader>NotUsing</PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;_USE_32BIT_TIME_T;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>$(SolutionDir)\..\..;$(SolutionDir)\..\..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
@@ -61,7 +63,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;_USE_32BIT_TIME_T;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>$(SolutionDir)\..\..;$(SolutionDir)\..\..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>  
     </ClCompile>
diff --git a/vsprojects/vs2013/gpr_cmdline_test.vcxproj b/vsprojects/vs2013/gpr_cmdline_test.vcxproj
index 0ff731c2935..705bd87fc1d 100644
--- a/vsprojects/vs2013/gpr_cmdline_test.vcxproj
+++ b/vsprojects/vs2013/gpr_cmdline_test.vcxproj
@@ -21,6 +21,7 @@
     <UseDebugLibraries>true</UseDebugLibraries>
     <PlatformToolset>v120</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
+    <IntDir>$(Configuration)\$(ProjectName)\</IntDir>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
@@ -28,6 +29,7 @@
     <PlatformToolset>v120</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
+    <IntDir>$(Configuration)\$(ProjectName)\</IntDir>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
@@ -45,7 +47,7 @@
       <PrecompiledHeader>NotUsing</PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;_USE_32BIT_TIME_T;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>$(SolutionDir)\..\..;$(SolutionDir)\..\..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
@@ -61,7 +63,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;_USE_32BIT_TIME_T;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>$(SolutionDir)\..\..;$(SolutionDir)\..\..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>  
     </ClCompile>
diff --git a/vsprojects/vs2013/gpr_log_test.vcxproj b/vsprojects/vs2013/gpr_log_test.vcxproj
index 9354773be44..d1d1f0ad139 100644
--- a/vsprojects/vs2013/gpr_log_test.vcxproj
+++ b/vsprojects/vs2013/gpr_log_test.vcxproj
@@ -21,6 +21,7 @@
     <UseDebugLibraries>true</UseDebugLibraries>
     <PlatformToolset>v120</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
+    <IntDir>$(Configuration)\$(ProjectName)\</IntDir>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>Application</ConfigurationType>
@@ -28,6 +29,7 @@
     <PlatformToolset>v120</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
+    <IntDir>$(Configuration)\$(ProjectName)\</IntDir>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
@@ -45,7 +47,7 @@
       <PrecompiledHeader>NotUsing</PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;_USE_32BIT_TIME_T;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>$(SolutionDir)\..\..;$(SolutionDir)\..\..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
@@ -61,7 +63,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;_USE_32BIT_TIME_T;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>$(SolutionDir)\..\..;$(SolutionDir)\..\..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>  
     </ClCompile>
diff --git a/vsprojects/vs2013/grpc.vcxproj b/vsprojects/vs2013/grpc.vcxproj
index 85c36be9ca2..993dff3a667 100644
--- a/vsprojects/vs2013/grpc.vcxproj
+++ b/vsprojects/vs2013/grpc.vcxproj
@@ -21,6 +21,7 @@
     <UseDebugLibraries>true</UseDebugLibraries>
     <PlatformToolset>v120</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
+    <IntDir>$(Configuration)\$(ProjectName)\</IntDir>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>StaticLibrary</ConfigurationType>
@@ -28,6 +29,7 @@
     <PlatformToolset>v120</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
+    <IntDir>$(Configuration)\$(ProjectName)\</IntDir>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
@@ -45,7 +47,7 @@
       <PrecompiledHeader>NotUsing</PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;_USE_32BIT_TIME_T;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>$(SolutionDir)\..\..;$(SolutionDir)\..\..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
@@ -61,7 +63,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;_USE_32BIT_TIME_T;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>$(SolutionDir)\..\..;$(SolutionDir)\..\..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>  
     </ClCompile>
diff --git a/vsprojects/vs2013/grpc_test_util.vcxproj b/vsprojects/vs2013/grpc_test_util.vcxproj
index 8fee039bb7c..6c131f54d15 100644
--- a/vsprojects/vs2013/grpc_test_util.vcxproj
+++ b/vsprojects/vs2013/grpc_test_util.vcxproj
@@ -21,6 +21,7 @@
     <UseDebugLibraries>true</UseDebugLibraries>
     <PlatformToolset>v120</PlatformToolset>
     <CharacterSet>Unicode</CharacterSet>
+    <IntDir>$(Configuration)\$(ProjectName)\</IntDir>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
     <ConfigurationType>StaticLibrary</ConfigurationType>
@@ -28,6 +29,7 @@
     <PlatformToolset>v120</PlatformToolset>
     <WholeProgramOptimization>true</WholeProgramOptimization>
     <CharacterSet>Unicode</CharacterSet>
+    <IntDir>$(Configuration)\$(ProjectName)\</IntDir>
   </PropertyGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
   <ImportGroup Label="ExtensionSettings">
@@ -45,7 +47,7 @@
       <PrecompiledHeader>NotUsing</PrecompiledHeader>
       <WarningLevel>Level3</WarningLevel>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_LIB;_USE_32BIT_TIME_T;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>$(SolutionDir)\..\..;$(SolutionDir)\..\..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
     </ClCompile>
@@ -61,7 +63,7 @@
       <Optimization>MaxSpeed</Optimization>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <IntrinsicFunctions>true</IntrinsicFunctions>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_LIB;_USE_32BIT_TIME_T;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <SDLCheck>true</SDLCheck>
       <AdditionalIncludeDirectories>$(SolutionDir)\..\..;$(SolutionDir)\..\..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>  
     </ClCompile>