diff --git a/.gitignore b/.gitignore
index fc1043b..edfc0d7 100644
--- a/.gitignore
+++ b/.gitignore
@@ -18,3 +18,7 @@
 
 # Driver Verification Log
 /wintun.DVL.XML
+
+# WHQL Driver
+/whql/x86
+/whql/amd64
diff --git a/README.md b/README.md
index bb38309..eaf30d8 100644
--- a/README.md
+++ b/README.md
@@ -53,7 +53,7 @@ msbuild wintun.proj [/t:<target>]
 
   - `DVL`: Runs the `SDV`, and creates a Driver Verification Log, only for AMD64 release configurations.
 
-  - `MSM`: Builds Microsoft Installer Merge Modules in `<output folder>\wintun-<platform>-<version>.msm`.
+  - `MSM`: Builds Microsoft Installer Merge Modules in `<output folder>\wintun-<platform>-<version>.msm`. Requires WHLK signed driver (See: [Building Microsoft Installer Merge Modules]).
 
 The driver output folders are:
 
@@ -66,6 +66,14 @@ AMD64 Release              | `amd64\Release\wintun`
 ARM64 Debug                | `arm64\Debug\wintun`
 ARM64 Release              | `arm64\Release\wintun`
 
+### Building Microsoft Installer Merge Modules
+
+1. `msbuild wintun.proj /t:DVL;Build`
+2. Perform Windows Hardware Lab Kit tests; Submit submission package to Microsoft; Get WHQL signed driver.
+3. Copy WHQL signed driver to `whql\x86` and `whql\amd64` subfolders.
+4. `msbuild wintun.proj /t:MSM`
+5. MSM files are placed in `dist` subfolder.
+
 
 ## Usage
 
diff --git a/wintun.proj b/wintun.proj
index 45faaa1..bd4a32c 100644
--- a/wintun.proj
+++ b/wintun.proj
@@ -63,10 +63,10 @@
   <!--
     MSM Building
   -->
-  <Target Name="MSM-x86" DependsOnTargets="Build" Outputs="$(DistributionDir)wintun-x86-$(WintunVersionStr).msm">
+  <Target Name="MSM-x86" Outputs="$(DistributionDir)wintun-x86-$(WintunVersionStr).msm">
     <MSBuild Projects="wintun.wixproj" Targets="Build" Properties="Configuration=Release;Platform=x86"/>
   </Target>
-  <Target Name="MSM-amd64" DependsOnTargets="Build" Outputs="$(DistributionDir)wintun-amd64-$(WintunVersionStr).msm">
+  <Target Name="MSM-amd64" Outputs="$(DistributionDir)wintun-amd64-$(WintunVersionStr).msm">
     <MSBuild Projects="wintun.wixproj" Targets="Build" Properties="Configuration=Release;Platform=x64"/>
   </Target>
 </Project>
diff --git a/wintun.wixproj b/wintun.wixproj
index 25ddfdf..8474034 100644
--- a/wintun.wixproj
+++ b/wintun.wixproj
@@ -27,7 +27,8 @@
     <DefineConstants>WINTUN_VERSION=$(WintunVersion);$(DefineConstants)</DefineConstants>
     <SuppressSpecificWarnings>1006;1086;$(SuppressSpecificWarnings)</SuppressSpecificWarnings>
     <LinkerSuppressSpecificWarnings>1103;$(LinkerSuppressSpecificWarnings)</LinkerSuppressSpecificWarnings>
-    <LinkerAdditionalOptions>-b output_dir="$(IntermediateOutputPath.TrimEnd('\'))" $(LinkerAdditionalOptions)</LinkerAdditionalOptions>
+    <SuppressIces>ICE30;$(SuppressIces)</SuppressIces>
+    <LinkerAdditionalOptions>-b output_dir="$(IntermediateOutputPath.TrimEnd('\'))" -b whwl_dir="whql\$(WintunPlatform)" $(LinkerAdditionalOptions)</LinkerAdditionalOptions>
   </PropertyGroup>
   <PropertyGroup Condition="'$(Configuration)'=='Release'">
     <SuppressPdbOutput>true</SuppressPdbOutput>
diff --git a/wintun.wxs b/wintun.wxs
index ddd2c25..db57721 100644
--- a/wintun.wxs
+++ b/wintun.wxs
@@ -25,9 +25,26 @@
 
 		<Binary Id="wintun.cer" SourceFile="!(bindpath.output_dir)wintun.cer"/>
 
+		<Property Id="WINDOWS10_VER_MAJ">
+			<RegistrySearch Id="Windows10VersionMaj" Root="HKLM" Key="SOFTWARE\Microsoft\Windows NT\CurrentVersion" Name="CurrentMajorVersionNumber" Type="raw"/>
+		</Property>
+
 		<Directory Id="TARGETDIR" Name="SourceDir">
 			<Directory Id="WintunFolder">
+				<Component Id="wintun.cat.whql" Guid="2f17bc6d-0006-47c4-8ba3-f055d1852558">
+					<Condition><![CDATA[WINDOWS10_VER_MAJ]]></Condition>
+					<File
+						Id="wintun.cat.whql"
+						Name="wintun.cat"
+						Source="!(bindpath.whwl_dir)wintun.cat"
+						DefaultVersion="$(var.WINTUN_VERSION)"
+						DefaultLanguage="0"/>
+					<diffx:Driver
+						AddRemovePrograms="no"
+						PlugAndPlayPrompt="no"/>
+				</Component>
 				<Component Id="wintun.cat" Guid="41fbe711-a1af-4b83-8b5d-fc1b112969c1">
+					<Condition><![CDATA[NOT WINDOWS10_VER_MAJ]]></Condition>
 					<File
 						Id="wintun.cat"
 						Name="wintun.cat"
@@ -45,6 +62,7 @@
 						AddRemovePrograms="no"
 						PlugAndPlayPrompt="no"/>
 				</Component>
+
 				<Component Id="wintun.inf" Guid="c58122b3-c7ba-4207-b68d-a236e371f9ed">
 					<File
 						Id="wintun.inf"
@@ -53,7 +71,18 @@
 						DefaultVersion="$(var.WINTUN_VERSION)"
 						DefaultLanguage="0"/>
 				</Component>
+
+				<Component Id="wintun.sys.whql" Guid="039baa6d-b16b-4dc2-8b86-8bb500f78de0">
+					<Condition><![CDATA[WINDOWS10_VER_MAJ]]></Condition>
+					<File
+						Id="wintun.sys.whql"
+						Name="wintun.sys"
+						Source="!(bindpath.whwl_dir)wintun.sys"
+						DefaultVersion="$(var.WINTUN_VERSION)"
+						DefaultLanguage="0"/>
+				</Component>
 				<Component Id="wintun.sys" Guid="d0fde4a4-d228-4803-b57e-76bd8b16cf42">
+					<Condition><![CDATA[NOT WINDOWS10_VER_MAJ]]></Condition>
 					<File
 						Id="wintun.sys"
 						Name="wintun.sys"