diff --git a/ext/bin/devcon/README.txt b/ext/bin/devcon/README.txt
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--- /dev/null
+++ b/ext/bin/devcon/README.txt
@@ -0,0 +1,7 @@
+This is the Microsoft "devcon" utility, which as far as I know is
+fair game to redistribute. It's packaged with OpenVPN and several
+other things and also distributed in source code form as an example
+program by Microsoft.
+
+It's used to automatically install the Microsoft Loopback Adapter
+or remove it when no longer needed.
diff --git a/ext/bin/devcon/devcon32.exe b/ext/bin/devcon/devcon32.exe
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index 000000000..2d909d6e6
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diff --git a/ext/bin/devcon/devcon64.exe b/ext/bin/devcon/devcon64.exe
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index 000000000..239b2dec6
Binary files /dev/null and b/ext/bin/devcon/devcon64.exe differ