diff --git a/ChangeLog.txt b/ChangeLog.txt
index eb92a71..3afccc3 100644
--- a/ChangeLog.txt
+++ b/ChangeLog.txt
@@ -2,6 +2,7 @@ List of Changes since the Fork
 ==============================
 In reverse chronological order:
 
+- remove long outdated vcxproj files, support building with cmake and nmake only on Windows
 - change update foreign attributes to remove xml:base and add xlink:arcrole to follow whatwg spec
 - fixed minor memory leaks
 - correctly handle text in form elements
diff --git a/README.md b/README.md
index c1ba5df..0bcd769 100644
--- a/README.md
+++ b/README.md
@@ -39,7 +39,7 @@ Original Goals & features:
 Installation
 ============
 
-To build and install the library, use CMake version 3.0 or later
+To build and install the library on macOS and Linux/Unix, use CMake version 3.0 or later
 
     git clone https://github.com/Sigil-Ebook/sigil-gumbo.git
     mkdir build
@@ -48,6 +48,21 @@ To build and install the library, use CMake version 3.0 or later
     make -j4
 
 
+To build the library on Windows, use CMake version 3.0 or later
+
+   1. clone the sigil gumbo repo
+   git clone https://github.com/Sigil-Ebook/sigil-gumbo.git
+
+   2. create a seprate build directory (do not build in the source directory itself)
+   mkdir build
+   cd build
+
+   3. Start the Visual Studio Command prompt for x64
+
+   4. cmake -G "NMake Makefiles" ..\sigil-gumbo
+      nmake
+
+
 To run the html5lib tree-construction test suite from the build directory
 after building
     
diff --git a/visualc/gumbo.vcxproj b/visualc/gumbo.vcxproj
deleted file mode 100644
index ce9bcbf..0000000
--- a/visualc/gumbo.vcxproj
+++ /dev/null
@@ -1,106 +0,0 @@
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-<Project DefaultTargets="Build" ToolsVersion="12.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup Label="ProjectConfigurations">
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-      <Configuration>Debug</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|Win32">
-      <Configuration>Release</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-  </ItemGroup>
-  <PropertyGroup Label="Globals">
-    <ProjectGuid>{2661FA5E-ACC3-4D27-8FD2-9DBB0414EEDC}</ProjectGuid>
-    <RootNamespace>gumbo</RootNamespace>
-    <ProjectName>gumbo</ProjectName>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
-    <ConfigurationType>StaticLibrary</ConfigurationType>
-    <UseDebugLibraries>true</UseDebugLibraries>
-    <PlatformToolset>v120</PlatformToolset>
-    <CharacterSet>MultiByte</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
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-    <UseDebugLibraries>false</UseDebugLibraries>
-    <PlatformToolset>v120</PlatformToolset>
-    <WholeProgramOptimization>true</WholeProgramOptimization>
-    <CharacterSet>MultiByte</CharacterSet>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
-  <ImportGroup Label="ExtensionSettings">
-  </ImportGroup>
-  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
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-  <ImportGroup Label="PropertySheets" Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-  </ImportGroup>
-  <PropertyGroup Label="UserMacros" />
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
-    <IncludePath>$(VC_IncludePath);$(WindowsSDK_IncludePath);./include</IncludePath>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
-    <IncludePath>./include;$(VC_IncludePath);$(WindowsSDK_IncludePath);</IncludePath>
-  </PropertyGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
-    <ClCompile>
-      <WarningLevel>Level3</WarningLevel>
-      <Optimization>Disabled</Optimization>
-      <SDLCheck>false</SDLCheck>
-      <BufferSecurityCheck>false</BufferSecurityCheck>
-    </ClCompile>
-    <Link>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-    </Link>
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-      <Optimization>MaxSpeed</Optimization>
-      <FunctionLevelLinking>true</FunctionLevelLinking>
-      <IntrinsicFunctions>true</IntrinsicFunctions>
-      <SDLCheck>true</SDLCheck>
-    </ClCompile>
-    <Link>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-      <EnableCOMDATFolding>true</EnableCOMDATFolding>
-      <OptimizeReferences>true</OptimizeReferences>
-    </Link>
-  </ItemDefinitionGroup>
-  <ItemGroup>
-    <ClCompile Include="..\src\attribute.c" />
-    <ClCompile Include="..\src\char_ref.c" />
-    <ClCompile Include="..\src\error.c" />
-    <ClCompile Include="..\src\parser.c" />
-    <ClCompile Include="..\src\string_buffer.c" />
-    <ClCompile Include="..\src\string_piece.c" />
-    <ClCompile Include="..\src\tag.c" />
-    <ClCompile Include="..\src\tokenizer.c" />
-    <ClCompile Include="..\src\utf8.c" />
-    <ClCompile Include="..\src\util.c" />
-    <ClCompile Include="..\src\vector.c" />
-  </ItemGroup>
-  <ItemGroup>
-    <ClInclude Include="include\strings.h" />
-    <ClInclude Include="..\src\attribute.h" />
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-    <ClInclude Include="..\src\error.h" />
-    <ClInclude Include="..\src\gumbo.h" />
-    <ClInclude Include="..\src\insertion_mode.h" />
-    <ClInclude Include="..\src\parser.h" />
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-    <ClInclude Include="..\src\util.h" />
-    <ClInclude Include="..\src\vector.h" />
-  </ItemGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
-  <ImportGroup Label="ExtensionTargets">
-  </ImportGroup>
-</Project>
\ No newline at end of file
diff --git a/visualc/gumbo.vcxproj.filters b/visualc/gumbo.vcxproj.filters
deleted file mode 100644
index cc2b1c4..0000000
--- a/visualc/gumbo.vcxproj.filters
+++ /dev/null
@@ -1,99 +0,0 @@
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\ No newline at end of file
diff --git a/visualc/gumbo.vcxproj.user b/visualc/gumbo.vcxproj.user
deleted file mode 100644
index ef5ff2a..0000000
--- a/visualc/gumbo.vcxproj.user
+++ /dev/null
@@ -1,4 +0,0 @@
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-</Project>
\ No newline at end of file