diff --git a/builds/msvc/vs2010/inproc_lat/inproc_lat.vcxproj b/builds/msvc/vs2010/inproc_lat/inproc_lat.vcxproj
index c07d03b5..e2fca338 100644
--- a/builds/msvc/vs2010/inproc_lat/inproc_lat.vcxproj
+++ b/builds/msvc/vs2010/inproc_lat/inproc_lat.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="10.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{6FF7436F-B3F6-4AE9-A3AC-CFDE8A3872A0}</ProjectGuid>
     <ProjectName>inproc_lat</ProjectName>
diff --git a/builds/msvc/vs2010/inproc_thr/inproc_thr.vcxproj b/builds/msvc/vs2010/inproc_thr/inproc_thr.vcxproj
index 32543b6c..d8d47e7e 100644
--- a/builds/msvc/vs2010/inproc_thr/inproc_thr.vcxproj
+++ b/builds/msvc/vs2010/inproc_thr/inproc_thr.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="10.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{1077E977-95DD-4E73-A692-74647DD0CC1E}</ProjectGuid>
     <ProjectName>inproc_thr</ProjectName>
diff --git a/builds/msvc/vs2010/libzmq/libzmq.vcxproj b/builds/msvc/vs2010/libzmq/libzmq.vcxproj
index ed36aed5..d24371ce 100644
--- a/builds/msvc/vs2010/libzmq/libzmq.vcxproj
+++ b/builds/msvc/vs2010/libzmq/libzmq.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="10.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{641C5F36-32EE-4323-B740-992B651CF9D6}</ProjectGuid>
     <ProjectName>libzmq</ProjectName>
@@ -2059,4 +2059,4 @@
     <ResourceCompile Include="..\..\resource.rc" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
-</Project>
+</Project>
\ No newline at end of file
diff --git a/builds/msvc/vs2010/local_lat/local_lat.vcxproj b/builds/msvc/vs2010/local_lat/local_lat.vcxproj
index 806bc6c4..e8728dad 100644
--- a/builds/msvc/vs2010/local_lat/local_lat.vcxproj
+++ b/builds/msvc/vs2010/local_lat/local_lat.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="10.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{4FDB8C73-9D4A-4D87-A4A9-A7FC06DFEA57}</ProjectGuid>
     <ProjectName>local_lat</ProjectName>
diff --git a/builds/msvc/vs2010/local_thr/local_thr.vcxproj b/builds/msvc/vs2010/local_thr/local_thr.vcxproj
index ef10bfd0..05542c6f 100644
--- a/builds/msvc/vs2010/local_thr/local_thr.vcxproj
+++ b/builds/msvc/vs2010/local_thr/local_thr.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="10.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{8EF2DF6B-6646-460F-8032-913B70FE0E94}</ProjectGuid>
     <ProjectName>local_thr</ProjectName>
diff --git a/builds/msvc/vs2010/remote_lat/remote_lat.vcxproj b/builds/msvc/vs2010/remote_lat/remote_lat.vcxproj
index 27ffccee..638fd89a 100644
--- a/builds/msvc/vs2010/remote_lat/remote_lat.vcxproj
+++ b/builds/msvc/vs2010/remote_lat/remote_lat.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="10.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{9C20A37C-5D9F-4C4C-A2D9-E6EE91A077D1}</ProjectGuid>
     <ProjectName>remote_lat</ProjectName>
diff --git a/builds/msvc/vs2010/remote_thr/remote_thr.vcxproj b/builds/msvc/vs2010/remote_thr/remote_thr.vcxproj
index 9b4d98b1..7134177b 100644
--- a/builds/msvc/vs2010/remote_thr/remote_thr.vcxproj
+++ b/builds/msvc/vs2010/remote_thr/remote_thr.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="10.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{B15E059C-0CBB-4A82-8C42-6567FB650802}</ProjectGuid>
     <ProjectName>remote_thr</ProjectName>
diff --git a/builds/msvc/vs2012/inproc_lat/inproc_lat.vcxproj b/builds/msvc/vs2012/inproc_lat/inproc_lat.vcxproj
index 9ffc0032..9746bef7 100644
--- a/builds/msvc/vs2012/inproc_lat/inproc_lat.vcxproj
+++ b/builds/msvc/vs2012/inproc_lat/inproc_lat.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="11.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{6FF7436F-B3F6-4AE9-A3AC-CFDE8A3872A0}</ProjectGuid>
     <ProjectName>inproc_lat</ProjectName>
diff --git a/builds/msvc/vs2012/inproc_thr/inproc_thr.vcxproj b/builds/msvc/vs2012/inproc_thr/inproc_thr.vcxproj
index 6b5428a0..26670cd3 100644
--- a/builds/msvc/vs2012/inproc_thr/inproc_thr.vcxproj
+++ b/builds/msvc/vs2012/inproc_thr/inproc_thr.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="11.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{1077E977-95DD-4E73-A692-74647DD0CC1E}</ProjectGuid>
     <ProjectName>inproc_thr</ProjectName>
diff --git a/builds/msvc/vs2012/libzmq/libzmq.vcxproj b/builds/msvc/vs2012/libzmq/libzmq.vcxproj
index 376f3746..3ac79b81 100644
--- a/builds/msvc/vs2012/libzmq/libzmq.vcxproj
+++ b/builds/msvc/vs2012/libzmq/libzmq.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="11.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{641C5F36-32EE-4323-B740-992B651CF9D6}</ProjectGuid>
     <ProjectName>libzmq</ProjectName>
@@ -2059,4 +2059,4 @@
     <ResourceCompile Include="..\..\resource.rc" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
-</Project>
+</Project>
\ No newline at end of file
diff --git a/builds/msvc/vs2012/local_lat/local_lat.vcxproj b/builds/msvc/vs2012/local_lat/local_lat.vcxproj
index ad086d4d..9a40c7aa 100644
--- a/builds/msvc/vs2012/local_lat/local_lat.vcxproj
+++ b/builds/msvc/vs2012/local_lat/local_lat.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="11.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{4FDB8C73-9D4A-4D87-A4A9-A7FC06DFEA57}</ProjectGuid>
     <ProjectName>local_lat</ProjectName>
diff --git a/builds/msvc/vs2012/local_thr/local_thr.vcxproj b/builds/msvc/vs2012/local_thr/local_thr.vcxproj
index 81b38cdd..cfc4ddb9 100644
--- a/builds/msvc/vs2012/local_thr/local_thr.vcxproj
+++ b/builds/msvc/vs2012/local_thr/local_thr.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="11.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{8EF2DF6B-6646-460F-8032-913B70FE0E94}</ProjectGuid>
     <ProjectName>local_thr</ProjectName>
diff --git a/builds/msvc/vs2012/remote_lat/remote_lat.vcxproj b/builds/msvc/vs2012/remote_lat/remote_lat.vcxproj
index 4118a8d5..96971e6d 100644
--- a/builds/msvc/vs2012/remote_lat/remote_lat.vcxproj
+++ b/builds/msvc/vs2012/remote_lat/remote_lat.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="11.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{9C20A37C-5D9F-4C4C-A2D9-E6EE91A077D1}</ProjectGuid>
     <ProjectName>remote_lat</ProjectName>
diff --git a/builds/msvc/vs2012/remote_thr/remote_thr.vcxproj b/builds/msvc/vs2012/remote_thr/remote_thr.vcxproj
index acce14a9..d4126b41 100644
--- a/builds/msvc/vs2012/remote_thr/remote_thr.vcxproj
+++ b/builds/msvc/vs2012/remote_thr/remote_thr.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="11.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{B15E059C-0CBB-4A82-8C42-6567FB650802}</ProjectGuid>
     <ProjectName>remote_thr</ProjectName>
diff --git a/builds/msvc/vs2013/inproc_lat/inproc_lat.vcxproj b/builds/msvc/vs2013/inproc_lat/inproc_lat.vcxproj
index 400bd3ff..e3da6303 100644
--- a/builds/msvc/vs2013/inproc_lat/inproc_lat.vcxproj
+++ b/builds/msvc/vs2013/inproc_lat/inproc_lat.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{6FF7436F-B3F6-4AE9-A3AC-CFDE8A3872A0}</ProjectGuid>
     <ProjectName>inproc_lat</ProjectName>
diff --git a/builds/msvc/vs2013/inproc_thr/inproc_thr.vcxproj b/builds/msvc/vs2013/inproc_thr/inproc_thr.vcxproj
index 5fd90ca6..deda7d5a 100644
--- a/builds/msvc/vs2013/inproc_thr/inproc_thr.vcxproj
+++ b/builds/msvc/vs2013/inproc_thr/inproc_thr.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{1077E977-95DD-4E73-A692-74647DD0CC1E}</ProjectGuid>
     <ProjectName>inproc_thr</ProjectName>
diff --git a/builds/msvc/vs2013/libzmq/libzmq.vcxproj b/builds/msvc/vs2013/libzmq/libzmq.vcxproj
index d3e4ab5d..bbf47c83 100644
--- a/builds/msvc/vs2013/libzmq/libzmq.vcxproj
+++ b/builds/msvc/vs2013/libzmq/libzmq.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{641C5F36-32EE-4323-B740-992B651CF9D6}</ProjectGuid>
     <ProjectName>libzmq</ProjectName>
diff --git a/builds/msvc/vs2013/local_lat/local_lat.vcxproj b/builds/msvc/vs2013/local_lat/local_lat.vcxproj
index 0a178c3f..123b0944 100644
--- a/builds/msvc/vs2013/local_lat/local_lat.vcxproj
+++ b/builds/msvc/vs2013/local_lat/local_lat.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{4FDB8C73-9D4A-4D87-A4A9-A7FC06DFEA57}</ProjectGuid>
     <ProjectName>local_lat</ProjectName>
diff --git a/builds/msvc/vs2013/local_thr/local_thr.vcxproj b/builds/msvc/vs2013/local_thr/local_thr.vcxproj
index 0731b382..daf0e929 100644
--- a/builds/msvc/vs2013/local_thr/local_thr.vcxproj
+++ b/builds/msvc/vs2013/local_thr/local_thr.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{8EF2DF6B-6646-460F-8032-913B70FE0E94}</ProjectGuid>
     <ProjectName>local_thr</ProjectName>
diff --git a/builds/msvc/vs2013/remote_lat/remote_lat.vcxproj b/builds/msvc/vs2013/remote_lat/remote_lat.vcxproj
index 91b0b0fc..877ee8ae 100644
--- a/builds/msvc/vs2013/remote_lat/remote_lat.vcxproj
+++ b/builds/msvc/vs2013/remote_lat/remote_lat.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{9C20A37C-5D9F-4C4C-A2D9-E6EE91A077D1}</ProjectGuid>
     <ProjectName>remote_lat</ProjectName>
diff --git a/builds/msvc/vs2013/remote_thr/remote_thr.vcxproj b/builds/msvc/vs2013/remote_thr/remote_thr.vcxproj
index 67c0f956..3ae96387 100644
--- a/builds/msvc/vs2013/remote_thr/remote_thr.vcxproj
+++ b/builds/msvc/vs2013/remote_thr/remote_thr.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{B15E059C-0CBB-4A82-8C42-6567FB650802}</ProjectGuid>
     <ProjectName>remote_thr</ProjectName>
diff --git a/builds/msvc/vs2015/inproc_lat/inproc_lat.vcxproj b/builds/msvc/vs2015/inproc_lat/inproc_lat.vcxproj
index 95cfa929..cb3d86f4 100644
--- a/builds/msvc/vs2015/inproc_lat/inproc_lat.vcxproj
+++ b/builds/msvc/vs2015/inproc_lat/inproc_lat.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{6FF7436F-B3F6-4AE9-A3AC-CFDE8A3872A0}</ProjectGuid>
     <ProjectName>inproc_lat</ProjectName>
@@ -61,7 +61,7 @@
   <ImportGroup Label="PropertySheets">
     <Import Project="$(ProjectDir)..\..\properties\$(Configuration).props" />
     <Import Project="$(ProjectDir)..\..\properties\Output.props" />
-    <Import Project="$(ProjectDir)$(ProjectName).props" />
+    <Import Project="$(ProjectDir)..\..\vs2015\$(ProjectName)\$(ProjectName).props" />
   </ImportGroup>
   <ItemGroup>
     <ClInclude Include="..\..\platform.hpp" />
diff --git a/builds/msvc/vs2015/inproc_thr/inproc_thr.vcxproj b/builds/msvc/vs2015/inproc_thr/inproc_thr.vcxproj
index 5e0f7aa5..acd82d87 100644
--- a/builds/msvc/vs2015/inproc_thr/inproc_thr.vcxproj
+++ b/builds/msvc/vs2015/inproc_thr/inproc_thr.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{1077E977-95DD-4E73-A692-74647DD0CC1E}</ProjectGuid>
     <ProjectName>inproc_thr</ProjectName>
@@ -61,7 +61,7 @@
   <ImportGroup Label="PropertySheets">
     <Import Project="$(ProjectDir)..\..\properties\$(Configuration).props" />
     <Import Project="$(ProjectDir)..\..\properties\Output.props" />
-    <Import Project="$(ProjectDir)$(ProjectName).props" />
+    <Import Project="$(ProjectDir)..\..\vs2015\$(ProjectName)\$(ProjectName).props" />
   </ImportGroup>
   <ItemGroup>
     <ClInclude Include="..\..\platform.hpp" />
diff --git a/builds/msvc/vs2015/libzmq/libzmq.vcxproj b/builds/msvc/vs2015/libzmq/libzmq.vcxproj
index b2728238..bbe7d7f7 100644
--- a/builds/msvc/vs2015/libzmq/libzmq.vcxproj
+++ b/builds/msvc/vs2015/libzmq/libzmq.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{641C5F36-32EE-4323-B740-992B651CF9D6}</ProjectGuid>
     <ProjectName>libzmq</ProjectName>
@@ -64,7 +64,7 @@
   <ImportGroup Label="PropertySheets">
     <Import Project="$(ProjectDir)..\..\properties\$(Configuration).props" />
     <Import Project="$(ProjectDir)..\..\properties\Output.props" />
-    <Import Project="$(ProjectDir)$(ProjectName).props" />
+    <Import Project="$(ProjectDir)..\..\vs2015\$(ProjectName)\$(ProjectName).props" />
   </ImportGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseLTCG|Win32'">
     <ClCompile>
@@ -578,7 +578,7 @@
       <PrecompiledHeaderFile Condition="'$(Configuration)|$(Platform)'=='DebugDLL|x64'">precompiled.hpp</PrecompiledHeaderFile>
       <PrecompiledHeaderFile Condition="'$(Configuration)|$(Platform)'=='DebugLIB|x64'">precompiled.hpp</PrecompiledHeaderFile>
     </ClCompile>
-	<ClCompile Include="..\..\..\..\src\gather.cpp">
+    <ClCompile Include="..\..\..\..\src\gather.cpp">
       <PrecompiledHeader Condition="'$(Configuration)|$(Platform)'=='ReleaseLIB|Win32'">Use</PrecompiledHeader>
       <PrecompiledHeaderFile Condition="'$(Configuration)|$(Platform)'=='ReleaseLIB|Win32'">precompiled.hpp</PrecompiledHeaderFile>
       <PrecompiledHeaderFile Condition="'$(Configuration)|$(Platform)'=='ReleaseLTCG|Win32'">precompiled.hpp</PrecompiledHeaderFile>
@@ -2059,4 +2059,4 @@
     <ResourceCompile Include="..\..\resource.rc" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
-</Project>
+</Project>
\ No newline at end of file
diff --git a/builds/msvc/vs2015/local_lat/local_lat.vcxproj b/builds/msvc/vs2015/local_lat/local_lat.vcxproj
index a51b6e5b..de80fb82 100644
--- a/builds/msvc/vs2015/local_lat/local_lat.vcxproj
+++ b/builds/msvc/vs2015/local_lat/local_lat.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{4FDB8C73-9D4A-4D87-A4A9-A7FC06DFEA57}</ProjectGuid>
     <ProjectName>local_lat</ProjectName>
@@ -61,7 +61,7 @@
   <ImportGroup Label="PropertySheets">
     <Import Project="$(ProjectDir)..\..\properties\$(Configuration).props" />
     <Import Project="$(ProjectDir)..\..\properties\Output.props" />
-    <Import Project="$(ProjectDir)$(ProjectName).props" />
+    <Import Project="$(ProjectDir)..\..\vs2015\$(ProjectName)\$(ProjectName).props" />
   </ImportGroup> 
   <ItemGroup>
     <ClInclude Include="..\..\platform.hpp" />
diff --git a/builds/msvc/vs2015/local_thr/local_thr.vcxproj b/builds/msvc/vs2015/local_thr/local_thr.vcxproj
index 1ffd7146..4deb4c0b 100644
--- a/builds/msvc/vs2015/local_thr/local_thr.vcxproj
+++ b/builds/msvc/vs2015/local_thr/local_thr.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{8EF2DF6B-6646-460F-8032-913B70FE0E94}</ProjectGuid>
     <ProjectName>local_thr</ProjectName>
@@ -61,7 +61,7 @@
   <ImportGroup Label="PropertySheets">
     <Import Project="$(ProjectDir)..\..\properties\$(Configuration).props" />
     <Import Project="$(ProjectDir)..\..\properties\Output.props" />
-    <Import Project="$(ProjectDir)$(ProjectName).props" />
+    <Import Project="$(ProjectDir)..\..\vs2015\$(ProjectName)\$(ProjectName).props" />
   </ImportGroup>
   <ItemGroup>
     <ClInclude Include="..\..\platform.hpp" />
diff --git a/builds/msvc/vs2015/remote_lat/remote_lat.vcxproj b/builds/msvc/vs2015/remote_lat/remote_lat.vcxproj
index 290950c4..714e838b 100644
--- a/builds/msvc/vs2015/remote_lat/remote_lat.vcxproj
+++ b/builds/msvc/vs2015/remote_lat/remote_lat.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{9C20A37C-5D9F-4C4C-A2D9-E6EE91A077D1}</ProjectGuid>
     <ProjectName>remote_lat</ProjectName>
@@ -61,7 +61,7 @@
   <ImportGroup Label="PropertySheets">
     <Import Project="$(ProjectDir)..\..\properties\$(Configuration).props" />
     <Import Project="$(ProjectDir)..\..\properties\Output.props" />
-    <Import Project="$(ProjectDir)$(ProjectName).props" />
+    <Import Project="$(ProjectDir)..\..\vs2015\$(ProjectName)\$(ProjectName).props" />
   </ImportGroup> 
   <ItemGroup>
     <ClInclude Include="..\..\platform.hpp" />
diff --git a/builds/msvc/vs2015/remote_thr/remote_thr.vcxproj b/builds/msvc/vs2015/remote_thr/remote_thr.vcxproj
index 88f82845..376f26eb 100644
--- a/builds/msvc/vs2015/remote_thr/remote_thr.vcxproj
+++ b/builds/msvc/vs2015/remote_thr/remote_thr.vcxproj
@@ -1,5 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
+<Project DefaultTargets="Build" ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
   <PropertyGroup Label="Globals">
     <ProjectGuid>{B15E059C-0CBB-4A82-8C42-6567FB650802}</ProjectGuid>
     <ProjectName>remote_thr</ProjectName>
@@ -61,7 +61,7 @@
   <ImportGroup Label="PropertySheets">
     <Import Project="$(ProjectDir)..\..\properties\$(Configuration).props" />
     <Import Project="$(ProjectDir)..\..\properties\Output.props" />
-    <Import Project="$(ProjectDir)$(ProjectName).props" />
+    <Import Project="$(ProjectDir)..\..\vs2015\$(ProjectName)\$(ProjectName).props" />
   </ImportGroup>  
   <ItemGroup>
     <ClInclude Include="..\..\platform.hpp" />