diff --git a/INSTALL.ubuntu b/INSTALL.ubuntu
new file mode 100644
index 0000000..b4fb75b
--- /dev/null
+++ b/INSTALL.ubuntu
@@ -0,0 +1,12 @@
+1) Install Ubuntu 14.04 64bit.
+
+2) Run as follows.
+-------------------------------------------------------------------------------
+$ sudo apt-get update
+$ sudo apt-get install git libpcap-dev libgstreamer1.0-dev gstreamer1.0-plugins-bad gstreamer1.0-plugins-ugly gstreamer1.0-libav
+$ git clone https://bitbucket.org/ohhara/ohmulticastvideoscanner.git
+$ cd ohmulticastvideoscanner
+$ ./configure
+$ make
+$ sudo ./omvs 233.19.187.192/30 233.19.187.244 233.19.187.1
+-------------------------------------------------------------------------------
diff --git a/INSTALL.windows b/INSTALL.windows
new file mode 100644
index 0000000..7ce562e
--- /dev/null
+++ b/INSTALL.windows
@@ -0,0 +1,33 @@
+1) Install Windows 7 64bit.
+
+2) Install WinPcap from http://www.winpcap.org/install/default.htm.
+
+3) Install WinPcap Developer's Pack from https://www.winpcap.org/devel.htm.
+
+4) Install MSYS2 from https://msys2.github.io/.
+
+5) Start "MSYS2 Shell".
+
+6) Run as follows.
+-------------------------------------------------------------------------------
+$ update-core
+-------------------------------------------------------------------------------
+
+7) Restart "MSYS2 Shell".
+
+8) Run as follows.
+-------------------------------------------------------------------------------
+$ pacman -Su
+$ pacman -S VCS base-devel mingw-w64-x86_64-toolchain mingw-w64-x86_64-gstreamer mingw-w64-x86_64-gst-libav mingw-w64-x86_64-gst-plugins-bad mingw-w64-x86_64-gst-plugins-good mingw-w64-x86_64-gst-plugins-ugly
+-------------------------------------------------------------------------------
+
+9) Start "MinGW-w64 Win64 Shell".
+
+10) Run as follows. Set CFLAGS and LDFLAGS properly when you run ./configure.
+-------------------------------------------------------------------------------
+$ git clone https://bitbucket.org/ohhara/ohmulticastvideoscanner.git
+$ cd ohmultivideoscanner
+$ CFLAGS="-IWpdPack/Include" LDFLAGS="-LWpdPack/Lib/x64" ./configure
+$ make
+$ ./omvs 233.19.187.192/30 233.19.187.244 233.19.187.1
+-------------------------------------------------------------------------------