-On Windows Cygwin (http://www.cygwin.com) is required with at least
-devel/gcc4 and devel/make installed in order to build fio, and
-admin/cygrunsrv to run it. You can also install devel/git to fetch/update
-the source files. To create an MSI installer package put a copy of Cygwin
-in os\windows\fio, install WiX 3.6 from http://wix.sourceforge.net/releases/
-and run dobuild.cmd from the os/windows directory.
+On Windows Cygwin (http://www.cygwin.com/) is required in order to
+build fio. To create an MSI installer package install WiX 3.7 from
+http://wixtoolset.org and run dobuild.cmd from the
+os/windows directory.
+
+How to compile FIO on 64-bit Windows:
+
+ 1. Install Cygwin (http://www.cygwin.com/setup.exe). Install 'make' and all
+ packages starting with 'mingw64-i686' and 'mingw64-x86_64'.
+ 2. Download ftp://sourceware.org/pub/pthreads-win32/prebuilt-dll-2-9-1-release/dll/x64/pthreadGC2.dll
+ and copy to the fio source directory.
+ 3. Open the Cygwin Terminal.
+ 4. Go to the fio directory (source files).
+ 5. Run 'make clean'.
+ 6. Run 'make'.