--- /dev/null
+++ b/MSVC/secp256k1.vcxproj
@@ -0,0 +1,252 @@
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+      <AdditionalIncludeDirectories>$(ProjectDir)..\;$(ProjectDir)..\include;$(OutDir)include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalOptions>/sdl- %(AdditionalOptions)</AdditionalOptions>
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+    <PostBuildEvent>
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+      <OutputFile>$(OutDir)\lib\x64\$(TargetName)$(TargetExt)</OutputFile>
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+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</ExcludedFromBuild>
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+    </ClCompile>
+    <ClCompile Include="..\src\gen_context.c" />
+    <ClCompile Include="..\src\secp256k1.c" />
+    <ClCompile Include="..\src\tests.c">
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+    <ClInclude Include="..\src\bench.h" />
+    <ClInclude Include="..\src\ecdsa.h" />
+    <ClInclude Include="..\src\ecdsa_impl.h" />
+    <ClInclude Include="..\src\eckey.h" />
+    <ClInclude Include="..\src\eckey_impl.h" />
+    <ClInclude Include="..\src\ecmult.h" />
+    <ClInclude Include="..\src\ecmult_const.h" />
+    <ClInclude Include="..\src\ecmult_const_impl.h" />
+    <ClInclude Include="..\src\ecmult_gen.h" />
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+    <ClInclude Include="..\src\hash_impl.h" />
+    <ClInclude Include="..\src\num.h" />
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+    <ClInclude Include="..\src\scalar_impl.h" />
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+    <ClInclude Include="..\src\testrand.h" />
+    <ClInclude Include="..\src\testrand_impl.h" />
+    <ClInclude Include="..\src\util.h" />
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+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
--- a/src/bench.h
+++ b/src/bench.h
@@ -9,7 +9,46 @@
 
 #include <stdio.h>
 #include <math.h>
+#ifdef _WIN32
+#include <time.h>
+#include <winsock2.h>
+
+struct timezone
+{
+	int  tz_minuteswest; /* minutes W of Greenwich */
+	int  tz_dsttime;     /* type of dst correction */
+};
+
+static __inline int gettimeofday(struct timeval *tp, struct timezone * tzp)
+{
+	FILETIME    file_time;
+	SYSTEMTIME  system_time;
+	ULARGE_INTEGER ularge;
+	static int tzflag;
+
+	GetSystemTime(&system_time);
+	SystemTimeToFileTime(&system_time, &file_time);
+	ularge.LowPart = file_time.dwLowDateTime;
+	ularge.HighPart = file_time.dwHighDateTime;
+
+	tp->tv_sec = (long)((ularge.QuadPart - 116444736000000000Ui64) / 10000000L);
+	tp->tv_usec = (long)(system_time.wMilliseconds * 1000);
+
+	if (NULL != tzp)
+	{
+		if (!tzflag)
+		{
+			_tzset();
+			tzflag++;
+		}
+		tzp->tz_minuteswest = _timezone / 60;
+		tzp->tz_dsttime = _daylight;
+	}
+	return 0;
+}
+#else
 #include "sys/time.h"
+#endif
 
 static double gettimedouble(void) {
     struct timeval tv;
--- a/src/gen_context.c
+++ b/src/gen_context.c
@@ -33,7 +33,7 @@ int main(int argc, char **argv) {
     (void)argc;
     (void)argv;
 
-    fp = fopen("src/ecmult_static_context.h","w");
+    fopen_s(&fp, "src/ecmult_static_context.h","w");
     if (fp == NULL) {
         fprintf(stderr, "Could not open src/ecmult_static_context.h for writing!\n");
         return -1;
-- 
2.10.2.windows.1

