diff --git a/builds/msvc/vs2008/libzmq/libzmq.vcproj b/builds/msvc/vs2008/libzmq/libzmq.vcproj
index 0a16630d..1315c592 100644
--- a/builds/msvc/vs2008/libzmq/libzmq.vcproj
+++ b/builds/msvc/vs2008/libzmq/libzmq.vcproj
@@ -106,6 +106,7 @@
       <File RelativePath="..\..\..\..\src\ctx.cpp" />
       <File RelativePath="..\..\..\..\src\dealer.cpp" />
       <File RelativePath="..\..\..\..\src\devpoll.cpp" />
+      <File RelativePath="..\..\..\..\src\dgram.cpp" />
       <File RelativePath="..\..\..\..\src\dish.cpp" />
       <File RelativePath="..\..\..\..\src\dist.cpp" />
       <File RelativePath="..\..\..\..\src\epoll.cpp" />
@@ -181,12 +182,14 @@
       <File RelativePath="..\..\..\..\src\array.hpp" />
       <File RelativePath="..\..\..\..\src\atomic_counter.hpp" />
       <File RelativePath="..\..\..\..\src\atomic_ptr.hpp" />
+      <File RelativePath="..\..\..\..\src\blob.hpp" />
       <File RelativePath="..\..\..\..\src\clock.hpp" />
       <File RelativePath="..\..\..\..\src\command.hpp" />
       <File RelativePath="..\..\..\..\src\config.hpp" />
       <File RelativePath="..\..\..\..\src\ctx.hpp" />
       <File RelativePath="..\..\..\..\src\decoder.hpp" />
       <File RelativePath="..\..\..\..\src\devpoll.hpp" />
+      <File RelativePath="..\..\..\..\src\dgram.hpp" />
       <File RelativePath="..\..\..\..\src\dish.hpp" />
       <File RelativePath="..\..\..\..\src\dist.hpp" />
       <File RelativePath="..\..\..\..\src\encoder.hpp" />
diff --git a/builds/msvc/vs2010/libzmq/libzmq.vcxproj b/builds/msvc/vs2010/libzmq/libzmq.vcxproj
index 2db6be69..d214729a 100644
--- a/builds/msvc/vs2010/libzmq/libzmq.vcxproj
+++ b/builds/msvc/vs2010/libzmq/libzmq.vcxproj
@@ -70,10 +70,12 @@
     <ClInclude Include="..\..\platform.hpp" />
     <ClInclude Include="..\..\resource.h" />
     <ClInclude Include="..\..\..\..\include\zmq.h" />
+    <ClInclude Include="..\..\..\..\src\zmq_draft.h" />
     <ClInclude Include="..\..\..\..\src\address.hpp" />
     <ClInclude Include="..\..\..\..\src\array.hpp" />
     <ClInclude Include="..\..\..\..\src\atomic_counter.hpp" />
     <ClInclude Include="..\..\..\..\src\atomic_ptr.hpp" />
+    <ClInclude Include="..\..\..\..\src\blob.hpp" />
     <ClInclude Include="..\..\..\..\src\client.hpp" />
     <ClInclude Include="..\..\..\..\src\clock.hpp" />
     <ClInclude Include="..\..\..\..\src\command.hpp" />
@@ -85,6 +87,7 @@
     <ClInclude Include="..\..\..\..\src\decoder.hpp" />
     <ClInclude Include="..\..\..\..\src\decoder_allocators.hpp" />
     <ClInclude Include="..\..\..\..\src\devpoll.hpp" />
+    <ClInclude Include="..\..\..\..\src\dgram.hpp" />
     <ClInclude Include="..\..\..\..\src\dish.hpp" />
     <ClInclude Include="..\..\..\..\src\dist.hpp" />
     <ClInclude Include="..\..\..\..\src\encoder.hpp" />
@@ -178,6 +181,7 @@
     <ClCompile Include="..\..\..\..\src\dealer.cpp" />
     <ClCompile Include="..\..\..\..\src\decoder_allocators.cpp" />
     <ClCompile Include="..\..\..\..\src\devpoll.cpp" />
+    <ClCompile Include="..\..\..\..\src\dgram.cpp" />
     <ClCompile Include="..\..\..\..\src\dish.cpp" />
     <ClCompile Include="..\..\..\..\src\dist.cpp" />
     <ClCompile Include="..\..\..\..\src\epoll.cpp" />
diff --git a/builds/msvc/vs2010/libzmq/libzmq.vcxproj.filters b/builds/msvc/vs2010/libzmq/libzmq.vcxproj.filters
index 9b93a830..930b009b 100644
--- a/builds/msvc/vs2010/libzmq/libzmq.vcxproj.filters
+++ b/builds/msvc/vs2010/libzmq/libzmq.vcxproj.filters
@@ -16,6 +16,9 @@
     <ClCompile Include="..\..\..\..\src\devpoll.cpp">
       <Filter>src</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\src\dgram.cpp">
+      <Filter>src</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\src\dist.cpp">
       <Filter>src</Filter>
     </ClCompile>
@@ -282,6 +285,9 @@
     <ClInclude Include="..\..\..\..\src\atomic_ptr.hpp">
       <Filter>src\include</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\src\blob.hpp">
+      <Filter>src\include</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\..\src\clock.hpp">
       <Filter>src\include</Filter>
     </ClInclude>
@@ -297,6 +303,9 @@
     <ClInclude Include="..\..\..\..\src\devpoll.hpp">
       <Filter>src\include</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\src\dgram.hpp">
+      <Filter>src\include</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\..\src\dist.hpp">
       <Filter>src\include</Filter>
     </ClInclude>
@@ -567,6 +576,9 @@
     <ClInclude Include="..\..\..\..\src\tweetnacl.h">
       <Filter>src\include</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\src\zmq_draft.h">
+      <Filter>src\include</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <Filter Include="include">
diff --git a/builds/msvc/vs2012/libzmq/libzmq.vcxproj b/builds/msvc/vs2012/libzmq/libzmq.vcxproj
index d053b24c..478c0644 100644
--- a/builds/msvc/vs2012/libzmq/libzmq.vcxproj
+++ b/builds/msvc/vs2012/libzmq/libzmq.vcxproj
@@ -70,6 +70,8 @@
     <ClInclude Include="..\..\platform.hpp" />
     <ClInclude Include="..\..\resource.h" />
     <ClInclude Include="..\..\..\..\include\zmq.h" />
+    <ClInclude Include="..\..\..\..\src\zmq_draft.h" />
+    <ClInclude Include="..\..\..\..\src\blob.hpp" />
     <ClInclude Include="..\..\..\..\src\address.hpp" />
     <ClInclude Include="..\..\..\..\src\array.hpp" />
     <ClInclude Include="..\..\..\..\src\atomic_counter.hpp" />
@@ -85,6 +87,7 @@
     <ClInclude Include="..\..\..\..\src\decoder.hpp" />
     <ClInclude Include="..\..\..\..\src\decoder_allocators.hpp" />
     <ClInclude Include="..\..\..\..\src\devpoll.hpp" />
+    <ClInclude Include="..\..\..\..\src\dgram.hpp" />
     <ClInclude Include="..\..\..\..\src\dish.hpp" />
     <ClInclude Include="..\..\..\..\src\dist.hpp" />
     <ClInclude Include="..\..\..\..\src\encoder.hpp" />
@@ -178,6 +181,7 @@
     <ClCompile Include="..\..\..\..\src\dealer.cpp" />
     <ClCompile Include="..\..\..\..\src\decoder_allocators.cpp" />
     <ClCompile Include="..\..\..\..\src\devpoll.cpp" />
+    <ClCompile Include="..\..\..\..\src\dgram.cpp" />
     <ClCompile Include="..\..\..\..\src\dish.cpp" />
     <ClCompile Include="..\..\..\..\src\dist.cpp" />
     <ClCompile Include="..\..\..\..\src\epoll.cpp" />
diff --git a/builds/msvc/vs2012/libzmq/libzmq.vcxproj.filters b/builds/msvc/vs2012/libzmq/libzmq.vcxproj.filters
index 9b93a830..930b009b 100644
--- a/builds/msvc/vs2012/libzmq/libzmq.vcxproj.filters
+++ b/builds/msvc/vs2012/libzmq/libzmq.vcxproj.filters
@@ -16,6 +16,9 @@
     <ClCompile Include="..\..\..\..\src\devpoll.cpp">
       <Filter>src</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\src\dgram.cpp">
+      <Filter>src</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\src\dist.cpp">
       <Filter>src</Filter>
     </ClCompile>
@@ -282,6 +285,9 @@
     <ClInclude Include="..\..\..\..\src\atomic_ptr.hpp">
       <Filter>src\include</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\src\blob.hpp">
+      <Filter>src\include</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\..\src\clock.hpp">
       <Filter>src\include</Filter>
     </ClInclude>
@@ -297,6 +303,9 @@
     <ClInclude Include="..\..\..\..\src\devpoll.hpp">
       <Filter>src\include</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\src\dgram.hpp">
+      <Filter>src\include</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\..\src\dist.hpp">
       <Filter>src\include</Filter>
     </ClInclude>
@@ -567,6 +576,9 @@
     <ClInclude Include="..\..\..\..\src\tweetnacl.h">
       <Filter>src\include</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\src\zmq_draft.h">
+      <Filter>src\include</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <Filter Include="include">
diff --git a/builds/msvc/vs2013/libzmq/libzmq.vcxproj b/builds/msvc/vs2013/libzmq/libzmq.vcxproj
index 5346239c..799b7688 100644
--- a/builds/msvc/vs2013/libzmq/libzmq.vcxproj
+++ b/builds/msvc/vs2013/libzmq/libzmq.vcxproj
@@ -67,14 +67,15 @@
     <Import Project="$(ProjectDir)..\..\vs2015\$(ProjectName)\$(ProjectName).props" />
   </ImportGroup>
   <ItemGroup>
-    <ClInclude Include="..\..\..\..\src\zmq_draft.h" />
     <ClInclude Include="..\..\platform.hpp" />
     <ClInclude Include="..\..\resource.h" />
     <ClInclude Include="..\..\..\..\include\zmq.h" />
+    <ClInclude Include="..\..\..\..\src\zmq_draft.h" />
     <ClInclude Include="..\..\..\..\src\address.hpp" />
     <ClInclude Include="..\..\..\..\src\array.hpp" />
     <ClInclude Include="..\..\..\..\src\atomic_counter.hpp" />
     <ClInclude Include="..\..\..\..\src\atomic_ptr.hpp" />
+    <ClInclude Include="..\..\..\..\src\blob.hpp" />
     <ClInclude Include="..\..\..\..\src\client.hpp" />
     <ClInclude Include="..\..\..\..\src\clock.hpp" />
     <ClInclude Include="..\..\..\..\src\command.hpp" />
@@ -86,6 +87,7 @@
     <ClInclude Include="..\..\..\..\src\decoder.hpp" />
     <ClInclude Include="..\..\..\..\src\decoder_allocators.hpp" />
     <ClInclude Include="..\..\..\..\src\devpoll.hpp" />
+    <ClInclude Include="..\..\..\..\src\dgram.hpp" />
     <ClInclude Include="..\..\..\..\src\dish.hpp" />
     <ClInclude Include="..\..\..\..\src\dist.hpp" />
     <ClInclude Include="..\..\..\..\src\encoder.hpp" />
@@ -179,6 +181,7 @@
     <ClCompile Include="..\..\..\..\src\dealer.cpp" />
     <ClCompile Include="..\..\..\..\src\decoder_allocators.cpp" />
     <ClCompile Include="..\..\..\..\src\devpoll.cpp" />
+    <ClCompile Include="..\..\..\..\src\dgram.cpp" />
     <ClCompile Include="..\..\..\..\src\dish.cpp" />
     <ClCompile Include="..\..\..\..\src\dist.cpp" />
     <ClCompile Include="..\..\..\..\src\epoll.cpp" />
diff --git a/builds/msvc/vs2013/libzmq/libzmq.vcxproj.filters b/builds/msvc/vs2013/libzmq/libzmq.vcxproj.filters
index 6b4a9d30..930b009b 100644
--- a/builds/msvc/vs2013/libzmq/libzmq.vcxproj.filters
+++ b/builds/msvc/vs2013/libzmq/libzmq.vcxproj.filters
@@ -16,6 +16,9 @@
     <ClCompile Include="..\..\..\..\src\devpoll.cpp">
       <Filter>src</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\src\dgram.cpp">
+      <Filter>src</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\src\dist.cpp">
       <Filter>src</Filter>
     </ClCompile>
@@ -282,6 +285,9 @@
     <ClInclude Include="..\..\..\..\src\atomic_ptr.hpp">
       <Filter>src\include</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\src\blob.hpp">
+      <Filter>src\include</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\..\src\clock.hpp">
       <Filter>src\include</Filter>
     </ClInclude>
@@ -297,6 +303,9 @@
     <ClInclude Include="..\..\..\..\src\devpoll.hpp">
       <Filter>src\include</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\src\dgram.hpp">
+      <Filter>src\include</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\..\src\dist.hpp">
       <Filter>src\include</Filter>
     </ClInclude>
diff --git a/builds/msvc/vs2015/libzmq/libzmq.vcxproj b/builds/msvc/vs2015/libzmq/libzmq.vcxproj
index 6d4080dd..a4ceaac2 100644
--- a/builds/msvc/vs2015/libzmq/libzmq.vcxproj
+++ b/builds/msvc/vs2015/libzmq/libzmq.vcxproj
@@ -70,10 +70,12 @@
     <ClInclude Include="..\..\platform.hpp" />
     <ClInclude Include="..\..\resource.h" />
     <ClInclude Include="..\..\..\..\include\zmq.h" />
+    <ClInclude Include="..\..\..\..\src\zmq_draft.h" />
     <ClInclude Include="..\..\..\..\src\address.hpp" />
     <ClInclude Include="..\..\..\..\src\array.hpp" />
     <ClInclude Include="..\..\..\..\src\atomic_counter.hpp" />
     <ClInclude Include="..\..\..\..\src\atomic_ptr.hpp" />
+    <ClInclude Include="..\..\..\..\src\blob.hpp" />
     <ClInclude Include="..\..\..\..\src\client.hpp" />
     <ClInclude Include="..\..\..\..\src\clock.hpp" />
     <ClInclude Include="..\..\..\..\src\command.hpp" />
@@ -85,6 +87,7 @@
     <ClInclude Include="..\..\..\..\src\decoder.hpp" />
     <ClInclude Include="..\..\..\..\src\decoder_allocators.hpp" />
     <ClInclude Include="..\..\..\..\src\devpoll.hpp" />
+    <ClInclude Include="..\..\..\..\src\dgram.hpp" />
     <ClInclude Include="..\..\..\..\src\dish.hpp" />
     <ClInclude Include="..\..\..\..\src\dist.hpp" />
     <ClInclude Include="..\..\..\..\src\encoder.hpp" />
@@ -178,6 +181,7 @@
     <ClCompile Include="..\..\..\..\src\dealer.cpp" />
     <ClCompile Include="..\..\..\..\src\decoder_allocators.cpp" />
     <ClCompile Include="..\..\..\..\src\devpoll.cpp" />
+    <ClCompile Include="..\..\..\..\src\dgram.cpp" />
     <ClCompile Include="..\..\..\..\src\dish.cpp" />
     <ClCompile Include="..\..\..\..\src\dist.cpp" />
     <ClCompile Include="..\..\..\..\src\epoll.cpp" />
diff --git a/builds/msvc/vs2015/libzmq/libzmq.vcxproj.filters b/builds/msvc/vs2015/libzmq/libzmq.vcxproj.filters
index 9b93a830..930b009b 100644
--- a/builds/msvc/vs2015/libzmq/libzmq.vcxproj.filters
+++ b/builds/msvc/vs2015/libzmq/libzmq.vcxproj.filters
@@ -16,6 +16,9 @@
     <ClCompile Include="..\..\..\..\src\devpoll.cpp">
       <Filter>src</Filter>
     </ClCompile>
+    <ClCompile Include="..\..\..\..\src\dgram.cpp">
+      <Filter>src</Filter>
+    </ClCompile>
     <ClCompile Include="..\..\..\..\src\dist.cpp">
       <Filter>src</Filter>
     </ClCompile>
@@ -282,6 +285,9 @@
     <ClInclude Include="..\..\..\..\src\atomic_ptr.hpp">
       <Filter>src\include</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\src\blob.hpp">
+      <Filter>src\include</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\..\src\clock.hpp">
       <Filter>src\include</Filter>
     </ClInclude>
@@ -297,6 +303,9 @@
     <ClInclude Include="..\..\..\..\src\devpoll.hpp">
       <Filter>src\include</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\src\dgram.hpp">
+      <Filter>src\include</Filter>
+    </ClInclude>
     <ClInclude Include="..\..\..\..\src\dist.hpp">
       <Filter>src\include</Filter>
     </ClInclude>
@@ -567,6 +576,9 @@
     <ClInclude Include="..\..\..\..\src\tweetnacl.h">
       <Filter>src\include</Filter>
     </ClInclude>
+    <ClInclude Include="..\..\..\..\src\zmq_draft.h">
+      <Filter>src\include</Filter>
+    </ClInclude>
   </ItemGroup>
   <ItemGroup>
     <Filter Include="include">