diff --git a/src/sdl/Srb2SDL-vc10.vcxproj b/src/sdl/Srb2SDL-vc10.vcxproj
index bd964259..d2466bd5 100644
--- a/src/sdl/Srb2SDL-vc10.vcxproj
+++ b/src/sdl/Srb2SDL-vc10.vcxproj
@@ -164,6 +164,7 @@
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\am_map.h" />
+    <ClInclude Include="..\apng.h" />
     <ClInclude Include="..\blua\lapi.h" />
     <ClInclude Include="..\blua\lauxlib.h" />
     <ClInclude Include="..\blua\lcode.h" />
@@ -317,6 +318,7 @@
   </ItemGroup>
   <ItemGroup>
     <ClCompile Include="..\am_map.c" />
+    <ClCompile Include="..\apng.c" />
     <ClCompile Include="..\blua\lapi.c" />
     <ClCompile Include="..\blua\lauxlib.c" />
     <ClCompile Include="..\blua\lbaselib.c" />
diff --git a/src/sdl/Srb2SDL-vc10.vcxproj.filters b/src/sdl/Srb2SDL-vc10.vcxproj.filters
index 09287436..daa13189 100644
--- a/src/sdl/Srb2SDL-vc10.vcxproj.filters
+++ b/src/sdl/Srb2SDL-vc10.vcxproj.filters
@@ -294,6 +294,9 @@
     <ClInclude Include="..\lua_script.h">
       <Filter>LUA</Filter>
     </ClInclude>
+    <ClInclude Include="..\apng.h">
+      <Filter>M_Misc</Filter>
+    </ClInclude>
     <ClInclude Include="..\md5.h">
       <Filter>M_Misc</Filter>
     </ClInclude>
diff --git a/src/sdl/Srb2SDL-vc9.vcproj b/src/sdl/Srb2SDL-vc9.vcproj
index d2a268f8..3898aeba 100644
--- a/src/sdl/Srb2SDL-vc9.vcproj
+++ b/src/sdl/Srb2SDL-vc9.vcproj
@@ -2834,6 +2834,50 @@
 				RelativePath="..\m_argv.h"
 				>
 			</File>
+			<File
+				RelativePath="..\apng.c"
+				>
+				<FileConfiguration
+					Name="Debug|Win32"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						AdditionalIncludeDirectories=""
+						PreprocessorDefinitions=""
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Debug|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						AdditionalIncludeDirectories=""
+						PreprocessorDefinitions=""
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|Win32"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						AdditionalIncludeDirectories=""
+						PreprocessorDefinitions=""
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						AdditionalIncludeDirectories=""
+						PreprocessorDefinitions=""
+					/>
+				</FileConfiguration>
+			</File>
+			<File
+				RelativePath="..\apng.h"
+				>
+			</File>
 			<File
 				RelativePath="..\m_bbox.c"
 				>
diff --git a/src/sdl/macosx/Srb2mac.xcodeproj/project.pbxproj b/src/sdl/macosx/Srb2mac.xcodeproj/project.pbxproj
index 94a3fbb6..a8ecbf7f 100644
--- a/src/sdl/macosx/Srb2mac.xcodeproj/project.pbxproj
+++ b/src/sdl/macosx/Srb2mac.xcodeproj/project.pbxproj
@@ -43,6 +43,7 @@
 		1E44AF0D0B67CDE900BAD059 /* m_fixed.c in Sources */ = {isa = PBXBuildFile; fileRef = 1E44AEFE0B67CDE900BAD059 /* m_fixed.c */; };
 		1E44AF0F0B67CDE900BAD059 /* m_menu.c in Sources */ = {isa = PBXBuildFile; fileRef = 1E44AF000B67CDE900BAD059 /* m_menu.c */; };
 		1E44AF110B67CDE900BAD059 /* m_misc.c in Sources */ = {isa = PBXBuildFile; fileRef = 1E44AF020B67CDE900BAD059 /* m_misc.c */; };
+		1E44AF110B67CDE900BAD059 /* apng.c in Sources */ = {isa = PBXBuildFile; fileRef = 1E44AF020B67CDE900BAD059 /* apng.c */; };
 		1E44AF130B67CDE900BAD059 /* m_random.c in Sources */ = {isa = PBXBuildFile; fileRef = 1E44AF040B67CDE900BAD059 /* m_random.c */; };
 		1E44AF1A0B67CE2A00BAD059 /* info.c in Sources */ = {isa = PBXBuildFile; fileRef = 1E44AF180B67CE2A00BAD059 /* info.c */; };
 		1E44AF1E0B67CE3600BAD059 /* md5.c in Sources */ = {isa = PBXBuildFile; fileRef = 1E44AF1C0B67CE3600BAD059 /* md5.c */; };
@@ -253,7 +254,9 @@
 		1E44AF000B67CDE900BAD059 /* m_menu.c */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.c; name = m_menu.c; path = ../../m_menu.c; sourceTree = SOURCE_ROOT; };
 		1E44AF010B67CDE900BAD059 /* m_menu.h */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.h; name = m_menu.h; path = ../../m_menu.h; sourceTree = SOURCE_ROOT; };
 		1E44AF020B67CDE900BAD059 /* m_misc.c */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.c; name = m_misc.c; path = ../../m_misc.c; sourceTree = SOURCE_ROOT; };
+		1E44AF020B67CDE900BAD059 /* apng.c */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.c; name = apng.c; path = ../../m_misc.c; sourceTree = SOURCE_ROOT; };
 		1E44AF030B67CDE900BAD059 /* m_misc.h */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.h; name = m_misc.h; path = ../../m_misc.h; sourceTree = SOURCE_ROOT; };
+		1E44AF020B67CDE900BAD059 /* apng.h */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.c; name = apng.h; path = ../../m_misc.c; sourceTree = SOURCE_ROOT; };
 		1E44AF040B67CDE900BAD059 /* m_random.c */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.c; name = m_random.c; path = ../../m_random.c; sourceTree = SOURCE_ROOT; };
 		1E44AF050B67CDE900BAD059 /* m_random.h */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.h; name = m_random.h; path = ../../m_random.h; sourceTree = SOURCE_ROOT; };
 		1E44AF060B67CDE900BAD059 /* m_swap.h */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.h; name = m_swap.h; path = ../../m_swap.h; sourceTree = SOURCE_ROOT; };
@@ -679,6 +682,8 @@
 				1E44AEFF0B67CDE900BAD059 /* m_fixed.h */,
 				1E44AF020B67CDE900BAD059 /* m_misc.c */,
 				1E44AF030B67CDE900BAD059 /* m_misc.h */,
+				1E44AF020B67CDE900BAD059 /* apng.c */,
+				1E44AF030B67CDE900BAD059 /* apng.h */,
 				676BB51C0E0DE06100C95963 /* m_queue.c */,
 				676BB51D0E0DE06100C95963 /* m_queue.h */,
 				1E44AF040B67CDE900BAD059 /* m_random.c */,
diff --git a/src/sdl12/Srb2SDL-vc10.vcxproj b/src/sdl12/Srb2SDL-vc10.vcxproj
index 958cd7d0..99916f58 100644
--- a/src/sdl12/Srb2SDL-vc10.vcxproj
+++ b/src/sdl12/Srb2SDL-vc10.vcxproj
@@ -835,6 +835,16 @@
       <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|x64'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|x64'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
     </ClCompile>
+    <ClCompile Include="..\apng.c">
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Debug|x64'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
+      <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Release|x64'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
+      <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Release|x64'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
+    </ClCompile>
     <ClCompile Include="..\m_misc.c">
       <AdditionalIncludeDirectories Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">%(AdditionalIncludeDirectories)</AdditionalIncludeDirectories>
       <PreprocessorDefinitions Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">%(PreprocessorDefinitions)</PreprocessorDefinitions>
@@ -1293,6 +1303,7 @@
     <ClInclude Include="filter\interp.h" />
     <ClInclude Include="filter\lq2x.h" />
     <ClInclude Include="..\p5prof.h" />
+    <ClInclude Include="..\apng.h" />
     <ClInclude Include="..\d_clisrv.h" />
     <ClInclude Include="..\d_event.h" />
     <ClInclude Include="..\d_main.h" />
diff --git a/src/sdl12/Srb2SDL-vc9.vcproj b/src/sdl12/Srb2SDL-vc9.vcproj
index d2a268f8..fa386e38 100644
--- a/src/sdl12/Srb2SDL-vc9.vcproj
+++ b/src/sdl12/Srb2SDL-vc9.vcproj
@@ -2790,6 +2790,50 @@
 		<Filter
 			Name="M_Misc"
 			>
+			<File
+				RelativePath="..\apng.c"
+				>
+				<FileConfiguration
+					Name="Debug|Win32"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						AdditionalIncludeDirectories=""
+						PreprocessorDefinitions=""
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Debug|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						AdditionalIncludeDirectories=""
+						PreprocessorDefinitions=""
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|Win32"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						AdditionalIncludeDirectories=""
+						PreprocessorDefinitions=""
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						AdditionalIncludeDirectories=""
+						PreprocessorDefinitions=""
+					/>
+				</FileConfiguration>
+			</File>
+			<File
+				RelativePath="..\apng.h"
+				>
+			</File>
 			<File
 				RelativePath="..\m_argv.c"
 				>
diff --git a/src/sdl12/macosx/Srb2mac.pbproj/project.pbxproj b/src/sdl12/macosx/Srb2mac.pbproj/project.pbxproj
index de12201f..1f8e3276 100644
--- a/src/sdl12/macosx/Srb2mac.pbproj/project.pbxproj
+++ b/src/sdl12/macosx/Srb2mac.pbproj/project.pbxproj
@@ -1365,6 +1365,20 @@
 			path = ../../m_misc.h;
 			refType = 2;
 		};
+		84177764085A10EB000C01D8 = {
+			fileEncoding = 30;
+			isa = PBXFileReference;
+			name = apng.c;
+			path = ../../apng.c;
+			refType = 2;
+		};
+		84177765085A10EB000C01D8 = {
+			fileEncoding = 30;
+			isa = PBXFileReference;
+			name = m_misc.h;
+			path = ../../apng.h;
+			refType = 2;
+		};
 		84177766085A10EB000C01D8 = {
 			fileEncoding = 30;
 			isa = PBXFileReference;
diff --git a/src/sdl12/macosx/Srb2mac.xcodeproj/project.pbxproj b/src/sdl12/macosx/Srb2mac.xcodeproj/project.pbxproj
index 0ab40c45..69c544c5 100644
--- a/src/sdl12/macosx/Srb2mac.xcodeproj/project.pbxproj
+++ b/src/sdl12/macosx/Srb2mac.xcodeproj/project.pbxproj
@@ -43,6 +43,7 @@
 		1E44AF0D0B67CDE900BAD059 /* m_fixed.c in Sources */ = {isa = PBXBuildFile; fileRef = 1E44AEFE0B67CDE900BAD059 /* m_fixed.c */; };
 		1E44AF0F0B67CDE900BAD059 /* m_menu.c in Sources */ = {isa = PBXBuildFile; fileRef = 1E44AF000B67CDE900BAD059 /* m_menu.c */; };
 		1E44AF110B67CDE900BAD059 /* m_misc.c in Sources */ = {isa = PBXBuildFile; fileRef = 1E44AF020B67CDE900BAD059 /* m_misc.c */; };
+		1E44AF110B67CDE900BAD059 /* apng.c in Sources */ = {isa = PBXBuildFile; fileRef = 1E44AF020B67CDE900BAD059 /* apng.c */; };
 		1E44AF130B67CDE900BAD059 /* m_random.c in Sources */ = {isa = PBXBuildFile; fileRef = 1E44AF040B67CDE900BAD059 /* m_random.c */; };
 		1E44AF1A0B67CE2A00BAD059 /* info.c in Sources */ = {isa = PBXBuildFile; fileRef = 1E44AF180B67CE2A00BAD059 /* info.c */; };
 		1E44AF1E0B67CE3600BAD059 /* md5.c in Sources */ = {isa = PBXBuildFile; fileRef = 1E44AF1C0B67CE3600BAD059 /* md5.c */; };
@@ -254,6 +255,8 @@
 		1E44AF010B67CDE900BAD059 /* m_menu.h */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.h; name = m_menu.h; path = ../../m_menu.h; sourceTree = SOURCE_ROOT; };
 		1E44AF020B67CDE900BAD059 /* m_misc.c */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.c; name = m_misc.c; path = ../../m_misc.c; sourceTree = SOURCE_ROOT; };
 		1E44AF030B67CDE900BAD059 /* m_misc.h */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.h; name = m_misc.h; path = ../../m_misc.h; sourceTree = SOURCE_ROOT; };
+		1E44AF020B67CDE900BAD059 /* apng.c */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.c; name = apng.c; path = ../../m_misc.c; sourceTree = SOURCE_ROOT; };
+		1E44AF030B67CDE900BAD059 /* apng.h */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.h; name = apng.h; path = ../../m_misc.h; sourceTree = SOURCE_ROOT; };
 		1E44AF040B67CDE900BAD059 /* m_random.c */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.c; name = m_random.c; path = ../../m_random.c; sourceTree = SOURCE_ROOT; };
 		1E44AF050B67CDE900BAD059 /* m_random.h */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.h; name = m_random.h; path = ../../m_random.h; sourceTree = SOURCE_ROOT; };
 		1E44AF060B67CDE900BAD059 /* m_swap.h */ = {isa = PBXFileReference; fileEncoding = 30; lastKnownFileType = sourcecode.c.h; name = m_swap.h; path = ../../m_swap.h; sourceTree = SOURCE_ROOT; };
@@ -679,6 +682,8 @@
 				1E44AEFF0B67CDE900BAD059 /* m_fixed.h */,
 				1E44AF020B67CDE900BAD059 /* m_misc.c */,
 				1E44AF030B67CDE900BAD059 /* m_misc.h */,
+				1E44AF020B67CDE900BAD059 /* apng.c */,
+				1E44AF030B67CDE900BAD059 /* apng.h */,
 				676BB51C0E0DE06100C95963 /* m_queue.c */,
 				676BB51D0E0DE06100C95963 /* m_queue.h */,
 				1E44AF040B67CDE900BAD059 /* m_random.c */,
diff --git a/src/win32/Srb2win-vc10.vcxproj b/src/win32/Srb2win-vc10.vcxproj
index ca73b129..774ce5cb 100644
--- a/src/win32/Srb2win-vc10.vcxproj
+++ b/src/win32/Srb2win-vc10.vcxproj
@@ -182,6 +182,7 @@
   </ItemDefinitionGroup>
   <ItemGroup>
     <ClCompile Include="..\am_map.c" />
+    <ClCompile Include="..\apng.c" />
     <ClCompile Include="..\blua\lapi.c" />
     <ClCompile Include="..\blua\lauxlib.c" />
     <ClCompile Include="..\blua\lbaselib.c" />
@@ -330,6 +331,7 @@
   </ItemGroup>
   <ItemGroup>
     <ClInclude Include="..\am_map.h" />
+    <ClInclude Include="..\apng.h" />
     <ClInclude Include="..\blua\lapi.h" />
     <ClInclude Include="..\blua\lauxlib.h" />
     <ClInclude Include="..\blua\lcode.h" />
diff --git a/src/win32/Srb2win-vc9.vcproj b/src/win32/Srb2win-vc9.vcproj
index 24235bc7..a64b8638 100644
--- a/src/win32/Srb2win-vc9.vcproj
+++ b/src/win32/Srb2win-vc9.vcproj
@@ -2851,6 +2851,50 @@
 				RelativePath="..\m_misc.h"
 				>
 			</File>
+			<File
+				RelativePath="..\apng.c"
+				>
+				<FileConfiguration
+					Name="Debug|Win32"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						AdditionalIncludeDirectories=""
+						PreprocessorDefinitions=""
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Debug|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						AdditionalIncludeDirectories=""
+						PreprocessorDefinitions=""
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|Win32"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						AdditionalIncludeDirectories=""
+						PreprocessorDefinitions=""
+					/>
+				</FileConfiguration>
+				<FileConfiguration
+					Name="Release|x64"
+					>
+					<Tool
+						Name="VCCLCompilerTool"
+						AdditionalIncludeDirectories=""
+						PreprocessorDefinitions=""
+					/>
+				</FileConfiguration>
+			</File>
+			<File
+				RelativePath="..\apng.h"
+				>
+			</File>
 			<File
 				RelativePath="..\m_queue.c"
 				>