diff --git a/libssh2/win32/libssh2.vcxproj b/libssh2/win32/libssh2.vcxproj
index f696e4ea0..6c69af68f 100644
--- a/libssh2/win32/libssh2.vcxproj
+++ b/libssh2/win32/libssh2.vcxproj
@@ -88,8 +88,8 @@
       <SubSystem>Console</SubSystem>
       <OutputFile>.\Release_dll\libssh2.dll</OutputFile>
       <ImportLibrary>.\Release_dll\libssh2.lib</ImportLibrary>
-      <AdditionalDependencies>ws2_32.lib;libeay32.lib;zlib.lib;%(AdditionalDependencies)</AdditionalDependencies>
-      <AdditionalLibraryDirectories>..\..\libz\contrib\vstudio\vc11\Release_lib;..\..\..\nmap-mswin32-aux\OpenSSL\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies>ws2_32.lib;libeay32.lib;zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>..\..\libz\contrib\vstudio\vc12\x86\ZlibDllRelease;..\..\..\nmap-mswin32-aux\OpenSSL\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
@@ -103,7 +103,7 @@
       <TreatWarningAsError>false</TreatWarningAsError>
       <MinimalRebuild>true</MinimalRebuild>
       <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
-      <AdditionalIncludeDirectories>..\..\..\nmap-mswin32-aux\OpenSSL\include;..\..\libzlib128-dll\include;..\win32;..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories>..\..\..\nmap-mswin32-aux\OpenSSL\include;..\..\libz;..\win32;..\include;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions>WIN32;_DEBUG;LIBSSH2_WIN32;LIBSSH2_OPENSSL;_LIB;LIBSSH2DEBUG;LIBSSH2_LIBRARY;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <AssemblerListingLocation>.\Debug_dll\</AssemblerListingLocation>
       <PrecompiledHeaderOutputFile>.\Debug_dll\libssh2.pch</PrecompiledHeaderOutputFile>
@@ -134,8 +134,8 @@
       <IgnoreAllDefaultLibraries>false</IgnoreAllDefaultLibraries>
       <OutputFile>.\Debug_dll\libssh2.dll</OutputFile>
       <ImportLibrary>.\Debug_dll\libssh2.lib</ImportLibrary>
-      <AdditionalDependencies>ws2_32.lib;libeay32.lib;zlibd.lib;%(AdditionalDependencies)</AdditionalDependencies>
-      <AdditionalLibraryDirectories>..\..\..\nmap-mswin32-aux\OpenSSL\lib;..\..\libz\contrib\vstudio\vc11\Debug_lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalDependencies>ws2_32.lib;libeay32.lib;zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
+      <AdditionalLibraryDirectories>..\..\..\nmap-mswin32-aux\OpenSSL\lib;..\..\libz\contrib\vstudio\vc12\x86\ZlibDllDebug;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
     </Link>
   </ItemDefinitionGroup>
   <ItemGroup>
@@ -179,7 +179,7 @@
     <ClInclude Include="libssh2_config.h" />
   </ItemGroup>
   <ItemGroup>
-    <ProjectReference Include="..\..\libz\contrib\vstudio\vc11\zlibvc.vcxproj">
+    <ProjectReference Include="..\..\libz\contrib\vstudio\vc12\zlibvc.vcxproj">
       <Project>{8fd826f8-3739-44e6-8cc8-997122e53b8d}</Project>
       <Private>false</Private>
       <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
@@ -191,4 +191,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
\ No newline at end of file
+</Project>
diff --git a/mswin32/nmap.sln b/mswin32/nmap.sln
index 3f9fa221c..fc91192c2 100644
--- a/mswin32/nmap.sln
+++ b/mswin32/nmap.sln
@@ -5,8 +5,8 @@ MinimumVisualStudioVersion = 10.0.40219.1
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "nmap", "nmap.vcxproj", "{361719F0-AB42-4C93-9DE8-7D2144B96625}"
 	ProjectSection(ProjectDependencies) = postProject
 		{99157C3F-39F6-4663-99D7-1D9C1484494E} = {99157C3F-39F6-4663-99D7-1D9C1484494E}
-		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8} = {745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}
 		{A7BE3D76-F20C-40C5-8986-DE4028B3B57D} = {A7BE3D76-F20C-40C5-8986-DE4028B3B57D}
+		{8FD826F8-3739-44E6-8CC8-997122E53B8D} = {8FD826F8-3739-44E6-8CC8-997122E53B8D}
 	EndProjectSection
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "nsock", "..\nsock\nsock.vcxproj", "{F8D6D1E3-D4EA-402C-98AA-168E5309BAF4}"
@@ -29,11 +29,11 @@ Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "liblinear", "..\liblinear\l
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "nmap-update", "..\nmap-update\nmap-update.vcxproj", "{BBF27339-C7B6-4F52-B742-897796C1F13B}"
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libz", "..\libz\contrib\vstudio\vc11\zlibvc.vcxproj", "{8FD826F8-3739-44E6-8CC8-997122E53B8D}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibvc", "..\libz\contrib\vstudio\vc12\zlibvc.vcxproj", "{8FD826F8-3739-44E6-8CC8-997122E53B8D}"
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "libssh2", "..\libssh2\win32\libssh2.vcxproj", "{ED957342-E43B-496E-92D9-4C76B525BDF5}"
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibstat", "..\libz\contrib\vstudio\vc11\zlibstat.vcxproj", "{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}"
+Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "zlibstat", "..\libz\contrib\vstudio\vc12\zlibstat.vcxproj", "{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -168,7 +168,6 @@ Global
 		{BBF27339-C7B6-4F52-B742-897796C1F13B}.Ncat Static|Win32.Build.0 = Release|Win32
 		{BBF27339-C7B6-4F52-B742-897796C1F13B}.Ncat Static|x64.ActiveCfg = Release|Win32
 		{BBF27339-C7B6-4F52-B742-897796C1F13B}.Release|Win32.ActiveCfg = Release|Win32
-		{BBF27339-C7B6-4F52-B742-897796C1F13B}.Release|Win32.Build.0 = Release|Win32
 		{BBF27339-C7B6-4F52-B742-897796C1F13B}.Release|x64.ActiveCfg = Release|Win32
 		{BBF27339-C7B6-4F52-B742-897796C1F13B}.ReleaseWithoutAsm|Win32.ActiveCfg = Release|Win32
 		{BBF27339-C7B6-4F52-B742-897796C1F13B}.ReleaseWithoutAsm|Win32.Build.0 = Release|Win32
@@ -210,7 +209,6 @@ Global
 		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Ncat Static|x64.ActiveCfg = Release|x64
 		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Ncat Static|x64.Build.0 = Release|x64
 		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Win32.ActiveCfg = Release|Win32
-		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|Win32.Build.0 = Release|Win32
 		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.ActiveCfg = Release|x64
 		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.Release|x64.Build.0 = Release|x64
 		{745DEC58-EBB3-47A9-A9B8-4C6627C01BF8}.ReleaseWithoutAsm|Win32.ActiveCfg = ReleaseWithoutAsm|Win32
diff --git a/mswin32/nmap.vcxproj b/mswin32/nmap.vcxproj
index 2f03aff51..f183e2a0e 100644
--- a/mswin32/nmap.vcxproj
+++ b/mswin32/nmap.vcxproj
@@ -55,9 +55,7 @@
     <ClCompile>
       <Optimization>Disabled</Optimization>
       <AdditionalIncludeDirectories>.;..;..\liblua;..\nbase;..\libpcre;..\nsock\include;..\..\nmap-mswin32-aux\Npcap\Include;..\libdnet-stripped\include;..\..\nmap-mswin32-aux\OpenSSL\include;..\liblinear;..\libssh2\include;..\libz;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <AdditionalIncludeDirectories>..\libssh2\include;.;..;..\liblua;..\nbase;..\libpcre;..\nsock\include;..\..\nmap-mswin32-aux\Npcap\Include;..\libdnet-stripped\include;..\..\nmap-mswin32-aux\OpenSSL\include;..\liblinear;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;_CONSOLE;BPF_MAJOR_VERSION;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_CONSOLE;BPF_MAJOR_VERSION;ZLIB_WINAPI;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <PreprocessToFile>false</PreprocessToFile>
       <PreprocessSuppressLineNumbers>false</PreprocessSuppressLineNumbers>
       <PreprocessKeepComments>false</PreprocessKeepComments>
@@ -76,10 +74,10 @@
       <ShowIncludes>false</ShowIncludes>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>liblua.lib;nsock.lib;libpcre.lib;nbase.lib;libdnet-stripped.lib;libssh2.lib;zlibstat.lib;liblinear.lib;ws2_32.lib;IPHlpAPI.Lib;wpcap.lib;packet.lib;advapi32.lib;libeay32.lib;ssleay32.lib;shell32.lib;libnetutil.lib</AdditionalDependencies>
+      <AdditionalDependencies>liblua.lib;nsock.lib;libpcre.lib;nbase.lib;libdnet-stripped.lib;libssh2.lib;zlibwapi.lib;liblinear.lib;ws2_32.lib;IPHlpAPI.Lib;wpcap.lib;packet.lib;advapi32.lib;libeay32.lib;ssleay32.lib;shell32.lib;libnetutil.lib</AdditionalDependencies>
       <OutputFile>.\Debug\nmap.exe</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
-      <AdditionalLibraryDirectories>..\libssh2\win32\Release_dll;..\..\nmap-mswin32-aux\Npcap\Lib;..\liblua;..\libpcre;..\nsock;..\nbase;..\libdnet-stripped;../libnetutil;..\..\nmap-mswin32-aux\OpenSSL\lib;..\liblinear;..\libz\contrib\vstudio\vc11\x86\ZlibStatRelease;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>..\libssh2\win32\Release_dll;..\..\nmap-mswin32-aux\Npcap\Lib;..\liblua;..\libpcre;..\nsock;..\nbase;..\libdnet-stripped;../libnetutil;..\..\nmap-mswin32-aux\OpenSSL\lib;..\liblinear;..\libz\contrib\vstudio\vc12\x86\ZlibDllRelease;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <IgnoreSpecificDefaultLibraries>%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <DelayLoadDLLs>packet.dll;wpcap.dll;iphlpapi.dll;%(DelayLoadDLLs)</DelayLoadDLLs>
       <GenerateDebugInformation>true</GenerateDebugInformation>
@@ -108,7 +106,7 @@ xcopy /y /d  "$(ProjectDir)..\libssh2\win32\$(Configuration)_dll\*.dll" "$(Proje
       <Optimization>MaxSpeed</Optimization>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
       <AdditionalIncludeDirectories>.;..;..\liblua;..\nbase;..\libpcre;..\nsock\include;..\..\nmap-mswin32-aux\Npcap\Include;..\libdnet-stripped\include;..\..\nmap-mswin32-aux\OpenSSL\include;..\liblinear;..\libssh2\include;..\libz;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
-      <PreprocessorDefinitions>WIN32;_CONSOLE;BPF_MAJOR_VERSION;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_CONSOLE;BPF_MAJOR_VERSION;ZLIB_WINAPI;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <FunctionLevelLinking>true</FunctionLevelLinking>
       <PrecompiledHeader>
@@ -121,10 +119,10 @@ xcopy /y /d  "$(ProjectDir)..\libssh2\win32\$(Configuration)_dll\*.dll" "$(Proje
       <CompileAs>CompileAsCpp</CompileAs>
     </ClCompile>
     <Link>
-      <AdditionalDependencies>liblua.lib;nsock.lib;libpcre.lib;nbase.lib;libdnet-stripped.lib;libssh2.lib;zlibstat.lib;liblinear.lib;ws2_32.lib;IPHlpAPI.Lib;wpcap.lib;packet.lib;advapi32.lib;libeay32.lib;ssleay32.lib;shell32.lib;libnetutil.lib</AdditionalDependencies>
+      <AdditionalDependencies>liblua.lib;nsock.lib;libpcre.lib;nbase.lib;libdnet-stripped.lib;libssh2.lib;zlibwapi.lib;liblinear.lib;ws2_32.lib;IPHlpAPI.Lib;wpcap.lib;packet.lib;advapi32.lib;libeay32.lib;ssleay32.lib;shell32.lib;libnetutil.lib</AdditionalDependencies>
       <OutputFile>.\Release/nmap.exe</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
-      <AdditionalLibraryDirectories>..\libssh2\win32\Release_dll;..\..\nmap-mswin32-aux\Npcap\Lib;..\liblua;..\libpcre;..\nsock;..\nbase;..\libdnet-stripped;../libnetutil;..\..\nmap-mswin32-aux\OpenSSL\lib;..\liblinear;..\libz\contrib\vstudio\vc11\x86\ZlibStatRelease;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <AdditionalLibraryDirectories>..\libssh2\win32\Release_dll;..\..\nmap-mswin32-aux\Npcap\Lib;..\liblua;..\libpcre;..\nsock;..\nbase;..\libdnet-stripped;../libnetutil;..\..\nmap-mswin32-aux\OpenSSL\lib;..\liblinear;..\libz\contrib\vstudio\vc12\x86\ZlibDllRelease;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
       <IgnoreSpecificDefaultLibraries>%(IgnoreSpecificDefaultLibraries)</IgnoreSpecificDefaultLibraries>
       <DelayLoadDLLs>packet.dll;wpcap.dll;iphlpapi.dll;%(DelayLoadDLLs)</DelayLoadDLLs>
       <ProgramDatabaseFile>.\Release/nmap.pdb</ProgramDatabaseFile>