diff --git a/LICENSE.txt b/LICENSE.txt
new file mode 100644
index 0000000..2caafac
--- /dev/null
+++ b/LICENSE.txt
@@ -0,0 +1,52 @@
+Microsoft Public License (Ms-PL)
+
+This license governs use of the accompanying software. If you use the
+software, you accept this license. If you do not accept the license, do not
+use the software.
+
+1.  Definitions
+The terms "reproduce," "reproduction," "derivative works," and "distribution"
+have the same meaning here as under U.S. copyright law. A "contribution" is
+the original software, or any additions or changes to the software. A
+"contributor" is any person that distributes its contribution under this
+license. "Licensed patents" are a contributor's patent claims that read
+directly on its contribution.
+
+2.  Grant of Rights
+     (A) Copyright Grant- Subject to the terms of this license, including the
+     license conditions and limitations in section 3, each contributor grants
+     you a non-exclusive, worldwide, royalty-free copyright license to
+     reproduce its contribution, prepare derivative works of its contribution,
+     and distribute its contribution or any derivative works that you create.
+
+     (B) Patent Grant- Subject to the terms of this license, including the
+     license conditions and limitations in section 3, each contributor grants
+     you a non-exclusive, worldwide, royalty-free license under its licensed
+     patents to make, have made, use, sell, offer for sale, import, and/or
+     otherwise dispose of its contribution in the software or derivative works
+     of the contribution in the software.
+
+3.  Conditions and Limitations
+     (A) No Trademark License- This license does not grant you rights to use
+     any contributors' name, logo, or trademarks.
+
+     (B) If you bring a patent claim against any contributor over patents that
+     you claim are infringed by the software, your patent license from such
+     contributor to the software ends automatically.
+
+     (C) If you distribute any portion of the software, you must retain all
+     copyright, patent, trademark, and attribution notices that are present in
+     the software.
+
+     (D) If you distribute any portion of the software in source code form,
+     you may do so only under this license by including a complete copy of
+     this license with your distribution. If you distribute any portion of the
+     software in compiled or object code form, you may only do so under a
+     license that complies with this license.
+
+     (E) The software is licensed "as-is." You bear the risk of using it. The
+     contributors give no express warranties, guarantees, or conditions. You
+     may have additional consumer rights under your local laws which this
+     license cannot change. To the extent permitted under your local laws, the
+     contributors exclude the implied warranties of merchantability, fitness
+     for a particular purpose and non-infringement.