diff --git a/libs/libpng-src/png.h b/libs/libpng-src/png.h
index b12174ba3..460489bea 100644
--- a/libs/libpng-src/png.h
+++ b/libs/libpng-src/png.h
@@ -327,7 +327,7 @@
 /* If pnglibconf.h is missing, you can
  * copy scripts/pnglibconf.h.prebuilt to pnglibconf.h
  */
-#   include "pnglibconf.h"
+#   include "projects\pnglibconf.h"
 #endif
 
 #define PNG_APNG_SUPPORTED
@@ -336,7 +336,7 @@
 
 #ifndef PNG_VERSION_INFO_ONLY
 /* Machine specific configuration. */
-#  include "pngconf.h"
+#  include "projects\pngconf.h"
 #endif
 
 /*
diff --git a/libs/libpng-src/pngpriv.h b/libs/libpng-src/pngpriv.h
index 57e1bf989..601ff00d3 100644
--- a/libs/libpng-src/pngpriv.h
+++ b/libs/libpng-src/pngpriv.h
@@ -69,7 +69,7 @@
  * before png.h is included, but load the configuration now if it is available.
  */
 #ifndef PNGLCONF_H
-#  include "pnglibconf.h"
+#  include "projects/pnglibconf.h"
 #endif
 
 /* Local renames may change non-exported API functions from png.h */
diff --git a/libs/libpng-src/projects/visualc10/.gitignore b/libs/libpng-src/projects/visualc10/.gitignore
new file mode 100644
index 000000000..e1bec81fc
--- /dev/null
+++ b/libs/libpng-src/projects/visualc10/.gitignore
@@ -0,0 +1,5 @@
+/Win32
+/x64
+/libpng.vcproj.*.*.user
+/ARM
+/ARM64
diff --git a/libs/libpng-src/projects/visualc10/libpng.vcxproj b/libs/libpng-src/projects/visualc10/libpng.vcxproj
new file mode 100644
index 000000000..eaa3d4ffb
--- /dev/null
+++ b/libs/libpng-src/projects/visualc10/libpng.vcxproj
@@ -0,0 +1,730 @@
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+      <Configuration>Debug</Configuration>
+      <Platform>Win32</Platform>
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+    <ProjectGuid>{72B01ACA-7A1A-4F7B-ACEF-2607299CF052}</ProjectGuid>
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+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">true</ExcludedFromBuild>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">\Oogaland\Projects\orospakr.ca\srb2\tools\libpng-src\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Debug|ARM64'">\Oogaland\Projects\orospakr.ca\srb2\tools\libpng-src\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">true</ExcludedFromBuild>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">\Oogaland\Projects\orospakr.ca\srb2\tools\libpng-src\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">\Oogaland\Projects\orospakr.ca\srb2\tools\libpng-src\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|x64'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">true</ExcludedFromBuild>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|x64'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|x64'">\Oogaland\Projects\orospakr.ca\srb2\tools\libpng-src\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">\Oogaland\Projects\orospakr.ca\srb2\tools\libpng-src\scripts;%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+    </ResourceCompile>
+  </ItemGroup>
+  <ItemGroup>
+    <ProjectReference Include="..\..\..\zlib\projects\visualc10\zlib.vcxproj">
+      <Project>{73a5729c-7323-41d4-ab48-8a03c9f81603}</Project>
+      <ReferenceOutputAssembly>false</ReferenceOutputAssembly>
+    </ProjectReference>
+  </ItemGroup>
+  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
+  <ImportGroup Label="ExtensionTargets">
+  </ImportGroup>
+</Project>
\ No newline at end of file
diff --git a/libs/zlib/projects/visualc10/zlib.vcxproj b/libs/zlib/projects/visualc10/zlib.vcxproj
index a7055ddb8..de7b2aaab 100644
--- a/libs/zlib/projects/visualc10/zlib.vcxproj
+++ b/libs/zlib/projects/visualc10/zlib.vcxproj
@@ -143,7 +143,7 @@
   <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
     <ClCompile>
       <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;ASMV;ASMINF;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;_DEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <MinimalRebuild>true</MinimalRebuild>
       <BasicRuntimeChecks>Default</BasicRuntimeChecks>
       <RuntimeLibrary>MultiThreadedDebugDLL</RuntimeLibrary>
@@ -267,7 +267,7 @@
     <ClCompile>
       <Optimization>MaxSpeed</Optimization>
       <InlineFunctionExpansion>OnlyExplicitInline</InlineFunctionExpansion>
-      <PreprocessorDefinitions>WIN32;NDEBUG;ASMV;ASMINF;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <PreprocessorDefinitions>WIN32;NDEBUG;_CRT_SECURE_NO_WARNINGS;_CRT_NONSTDC_NO_WARNINGS;%(PreprocessorDefinitions)</PreprocessorDefinitions>
       <StringPooling>true</StringPooling>
       <RuntimeLibrary>MultiThreadedDLL</RuntimeLibrary>
       <FunctionLevelLinking>true</FunctionLevelLinking>
@@ -570,6 +570,8 @@
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">true</ExcludedFromBuild>
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'">true</ExcludedFromBuild>
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
     </MASM>
     <MASM Include="..\..\contrib\masmx86\match686.asm">
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">true</ExcludedFromBuild>
@@ -578,6 +580,8 @@
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|ARM64'">true</ExcludedFromBuild>
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|ARM'">true</ExcludedFromBuild>
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|ARM'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
+      <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">true</ExcludedFromBuild>
     </MASM>
     <MASM Include="..\..\contrib\masmx64\gvmat64.asm">
       <ExcludedFromBuild Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">true</ExcludedFromBuild>
diff --git a/libs/zlib/zconf.h b/libs/zlib/zconf.h
index 5e1d68a00..1f7cfed46 100644
--- a/libs/zlib/zconf.h
+++ b/libs/zlib/zconf.h
@@ -472,7 +472,9 @@ typedef uLong FAR uLongf;
 #endif
 #ifndef Z_SOLO
 #  if defined(Z_HAVE_UNISTD_H) || defined(_LARGEFILE64_SOURCE)
+#ifndef _MSC_VER
 #    include <unistd.h>         /* for SEEK_*, off_t, and _LFS64_LARGEFILE */
+#endif
 #    ifdef VMS
 #      include <unixio.h>       /* for off_t */
 #    endif
diff --git a/src/win32/Makefile.cfg b/src/win32/Makefile.cfg
index 63bbcfaf3..27926b208 100644
--- a/src/win32/Makefile.cfg
+++ b/src/win32/Makefile.cfg
@@ -117,7 +117,7 @@ endif
 
 ifndef NOPNG
 ifndef PNG_CONFIG
-	PNG_CFLAGS?=-I../libs/libpng-src -I../libs/libpng-src/projects
+	PNG_CFLAGS?=-I../libs/libpng-src
 ifdef MINGW64
 	PNG_LDFLAGS?=-L../libs/libpng-src/projects -lpng64
 else