diff --git a/.gitignore b/.gitignore
index 1ad8135..d51c836 100644
--- a/.gitignore
+++ b/.gitignore
@@ -4,9 +4,11 @@
 *.sdf
 *.suo
 *.ncb
+*.pdb
 *.lib
 *.dll
 *.exe
+*.manifest
 *.a
 *.so
 *.swp
diff --git a/_setup_vc11_env.bat b/_setup_vc11_env.bat
new file mode 100644
index 0000000..4a13e23
--- /dev/null
+++ b/_setup_vc11_env.bat
@@ -0,0 +1,27 @@
+call "C:\Program Files (x86)\Microsoft Visual Studio 11.0\VC\vcvarsall.bat" amd64
+
+set BOOST=C:\Users\Vahagnk\src\boost_1_53_0
+set BOOST_INCLUDE=%BOOST%
+set BOOST_LIB=%BOOST%\stage\win64_vc12\lib
+
+set GTEST=C:\Users\Vahagnk\src\gtest-1.6.0
+set GTEST_INCLUDE=%GTEST%\include
+set GTEST_LIB=%GTEST%\build_x64_vc12
+
+set ZLIB=C:\Users\Vahagnk\src\zlib-1.2.7
+set ZLIB_INCLUDE=%ZLIB%
+set ZLIB_LIB=%ZLIB%\build_x64_vc12
+
+set LIBPNG=C:\Users\Vahagnk\src\libpng-1.5.10
+set LIBPNG_INCLUDE=%LIBPNG%
+set LIBPNG_LIB=%LIBPNG%\build_x64_vc10
+
+set TBB=C:\Users\Vahagnk\src\tbb41_20121003oss
+set TBB_INCLUDE=%TBB%\include
+set TBB_LIB=%TBB%\lib\intel64\vc11
+set TBB_BIN=%TBB%\bin\intel64\vc11
+
+set CXXFLAGS=/I%BOOST_INCLUDE% /I%TBB_INCLUDE% /I%GTEST_INCLUDE% /I%LIBPNG_INCLUDE% /I%ZLIB_INCLUDE% /D_CRT_SECURE_NO_WARNINGS /D_DEBUG /DWIN32 /MDd /Od /Zi /EHsc 
+set LDFLAGS=/INCREMENTAL:NO /LIBPATH:%BOOST_LIB% /LIBPATH:%TBB_LIB% /DEBUG /MACHINE:X64 /SUBSYSTEM:CONSOLE
+set PATH=%TBB_BIN%;%TBB_LIB%;%BOOST_LIB%;%PATH%
+
diff --git a/boost_chrono_process_cpu.cpp b/boost_chrono_process_cpu.cpp
new file mode 100644
index 0000000..7caf347
--- /dev/null
+++ b/boost_chrono_process_cpu.cpp
@@ -0,0 +1,36 @@
+#include <iostream>
+#include <exception>
+#include <string>
+#include <chrono>
+#include <thread>
+
+#include <boost/chrono/process_cpu_clocks.hpp>
+
+
+int main ( void )
+{try{
+
+	boost::chrono::process_cpu_clock clock;
+	boost::chrono::process_cpu_clock::time_point b = clock.now();
+	std::this_thread::sleep_for( std::chrono::seconds( 2 ) );
+	boost::chrono::process_cpu_clock::time_point e = clock.now();
+	boost::chrono::process_cpu_clock::duration d = e - b;
+
+	auto times = d.count(); 	
+	std::cout << times.real / 1e+9 << std::endl;
+	std::cout << times.user / 1e+9 << std::endl;
+	std::cout << times.system / 1e+9 << std::endl;
+
+	return 0;
+}
+catch ( const std::exception& e )
+{
+	std::cerr << std::endl
+			<< "std::exception(\"" << e.what() << "\")." << std::endl;
+}
+catch ( ... )
+{
+	std::cerr  << std::endl
+			<< "unknown exception." << std::endl;
+}}
+