diff --git a/libdnet-stripped/libdnet-stripped.vcxproj b/libdnet-stripped/libdnet-stripped.vcxproj
index ccad3113d..8983515a0 100755
--- a/libdnet-stripped/libdnet-stripped.vcxproj
+++ b/libdnet-stripped/libdnet-stripped.vcxproj
@@ -76,6 +76,7 @@
     </ClCompile>
     <Lib>
       <OutputFile>$(OutDir)libdnet-stripped.lib</OutputFile>
+      <LinkTimeCodeGeneration>true</LinkTimeCodeGeneration>
     </Lib>
   </ItemDefinitionGroup>
   <ItemGroup>
diff --git a/libpcre/libpcre.vcxproj b/libpcre/libpcre.vcxproj
index 2d3bfdc2e..76722985e 100644
--- a/libpcre/libpcre.vcxproj
+++ b/libpcre/libpcre.vcxproj
@@ -72,6 +72,7 @@
     </ClCompile>
     <Lib>
       <OutputFile>$(OutDir)libpcre.lib</OutputFile>
+      <LinkTimeCodeGeneration>true</LinkTimeCodeGeneration>
     </Lib>
   </ItemDefinitionGroup>
   <ItemGroup>
diff --git a/libssh2/win32/libssh2.vcxproj b/libssh2/win32/libssh2.vcxproj
index 611eaf9d4..743f93688 100644
--- a/libssh2/win32/libssh2.vcxproj
+++ b/libssh2/win32/libssh2.vcxproj
@@ -90,6 +90,8 @@
       <ImportLibrary>.\Release_dll\libssh2.lib</ImportLibrary>
       <AdditionalDependencies>ws2_32.lib;libcrypto.lib;zlibwapi.lib;%(AdditionalDependencies)</AdditionalDependencies>
       <AdditionalLibraryDirectories>..\..\libz\contrib\vstudio\vc12\x86\ZlibDllReleaseWithoutAsm;..\..\..\nmap-mswin32-aux\OpenSSL\lib;%(AdditionalLibraryDirectories)</AdditionalLibraryDirectories>
+      <OptimizeReferences>true</OptimizeReferences>
+      <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
diff --git a/libz/contrib/vstudio/vc12/zlibstat.vcxproj b/libz/contrib/vstudio/vc12/zlibstat.vcxproj
index ba4934bdf..205c36390 100644
--- a/libz/contrib/vstudio/vc12/zlibstat.vcxproj
+++ b/libz/contrib/vstudio/vc12/zlibstat.vcxproj
@@ -219,6 +219,7 @@
       <AdditionalDependencies>..\..\masmx86\match686.obj;..\..\masmx86\inffas32.obj;%(AdditionalDependencies)</AdditionalDependencies>
       <OutputFile>$(OutDir)zlibstat.lib</OutputFile>
       <SuppressStartupBanner>true</SuppressStartupBanner>
+      <LinkTimeCodeGeneration>true</LinkTimeCodeGeneration>
     </Lib>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='ReleaseWithoutAsm|Win32'">
diff --git a/libz/contrib/vstudio/vc12/zlibvc.vcxproj b/libz/contrib/vstudio/vc12/zlibvc.vcxproj
index 9e25cd9e4..54da3e17c 100644
--- a/libz/contrib/vstudio/vc12/zlibvc.vcxproj
+++ b/libz/contrib/vstudio/vc12/zlibvc.vcxproj
@@ -396,6 +396,8 @@ bld_ml32.bat</Command>
       <DataExecutionPrevention>
       </DataExecutionPrevention>
       <ImportLibrary>$(OutDir)zlibwapi.lib</ImportLibrary>
+      <OptimizeReferences>true</OptimizeReferences>
+      <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
diff --git a/mswin32/nmap.vcxproj b/mswin32/nmap.vcxproj
index a544e7dbf..4dbf8670f 100644
--- a/mswin32/nmap.vcxproj
+++ b/mswin32/nmap.vcxproj
@@ -144,6 +144,8 @@
       <DataExecutionPrevention>true</DataExecutionPrevention>
       <TargetMachine>MachineX86</TargetMachine>
       <AdditionalOptions>/LTCG %(AdditionalOptions)</AdditionalOptions>
+      <OptimizeReferences>true</OptimizeReferences>
+      <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
     </Link>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release-oem|Win32'">
@@ -444,4 +446,4 @@
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
   </ImportGroup>
-</Project>
+</Project>
\ No newline at end of file
diff --git a/nbase/nbase.vcxproj b/nbase/nbase.vcxproj
index 733bb4cc1..66508925b 100644
--- a/nbase/nbase.vcxproj
+++ b/nbase/nbase.vcxproj
@@ -87,6 +87,7 @@
     </ClCompile>
     <Lib>
       <OutputFile>$(OutDir)nbase.lib</OutputFile>
+      <LinkTimeCodeGeneration>true</LinkTimeCodeGeneration>
     </Lib>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Static|Win32'">
diff --git a/ncat/ncat.vcxproj b/ncat/ncat.vcxproj
index 9a3419a2c..f7e93a468 100644
--- a/ncat/ncat.vcxproj
+++ b/ncat/ncat.vcxproj
@@ -146,6 +146,8 @@
       <RandomizedBaseAddress>true</RandomizedBaseAddress>
       <DataExecutionPrevention>true</DataExecutionPrevention>
       <TargetMachine>MachineX86</TargetMachine>
+      <OptimizeReferences>true</OptimizeReferences>
+      <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
     </Link>
     <PostBuildEvent>
       <Command>xcopy "..\..\nmap-mswin32-aux\OpenSSL\bin\*.dll" "$(Configuration)\" /y</Command>
diff --git a/nping/nping.vcxproj b/nping/nping.vcxproj
index 9861b22c3..61edb7027 100644
--- a/nping/nping.vcxproj
+++ b/nping/nping.vcxproj
@@ -46,7 +46,7 @@
     <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</LinkIncremental>
     <OutDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">.\Release\</OutDir>
     <IntDir Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">.\Release\</IntDir>
-    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</LinkIncremental>
+    <LinkIncremental Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">false</LinkIncremental>
   </PropertyGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <Midl>
@@ -127,6 +127,8 @@
       <RandomizedBaseAddress>true</RandomizedBaseAddress>
       <DataExecutionPrevention>true</DataExecutionPrevention>
       <TargetMachine>MachineX86</TargetMachine>
+      <LinkTimeCodeGeneration>UseLinkTimeCodeGeneration</LinkTimeCodeGeneration>
+      <OptimizeReferences>true</OptimizeReferences>
     </Link>
     <PostBuildEvent>
       <Command>xcopy "..\..\nmap-mswin32-aux\OpenSSL\bin\*.dll" "$(SolutionDir)\$(Configuration)\" /y </Command>
diff --git a/nsock/nsock.vcxproj b/nsock/nsock.vcxproj
index ec61f09e1..3ff0b9ae9 100644
--- a/nsock/nsock.vcxproj
+++ b/nsock/nsock.vcxproj
@@ -125,6 +125,7 @@
     </ClCompile>
     <Lib>
       <OutputFile>$(OutDir)nsock.lib</OutputFile>
+      <LinkTimeCodeGeneration>true</LinkTimeCodeGeneration>
     </Lib>
   </ItemDefinitionGroup>
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Static|Win32'">