diff --git a/projects/openttd_vs90.vcproj b/projects/openttd_vs90.vcproj
--- a/projects/openttd_vs90.vcproj
+++ b/projects/openttd_vs90.vcproj
@@ -61,7 +61,7 @@
 				FavorSizeOrSpeed="2"
 				OmitFramePointers="true"
 				AdditionalIncludeDirectories="..\objs\langs;..\src\3rdparty\squirrel\include"
-				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;WIN32_ENABLE_DIRECTMUSIC_SUPPORT;WITH_ZLIB;WITH_PNG;WITH_FREETYPE;WITH_ICU;ENABLE_NETWORK;WITH_PERSONAL_DIR;PERSONAL_DIR=\"OpenTTD\";WITH_ASSERT"
+				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;WIN32_ENABLE_DIRECTMUSIC_SUPPORT;WITH_ZLIB;WITH_LZO;WITH_PNG;WITH_FREETYPE;WITH_ICU;ENABLE_NETWORK;WITH_PERSONAL_DIR;PERSONAL_DIR=\"OpenTTD\";WITH_ASSERT"
 				StringPooling="true"
 				ExceptionHandling="1"
 				RuntimeLibrary="0"
@@ -98,7 +98,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib dxguid.lib libfreetype2.lib libicu.lib"
+				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib lzo2.lib dxguid.lib libfreetype2.lib libicu.lib"
 				LinkIncremental="1"
 				SuppressStartupBanner="true"
 				IgnoreDefaultLibraryNames=""
@@ -168,7 +168,7 @@
 				AdditionalOptions="/MP"
 				Optimization="0"
 				AdditionalIncludeDirectories="..\objs\langs;..\src\3rdparty\squirrel\include"
-				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;WIN32_ENABLE_DIRECTMUSIC_SUPPORT;WITH_ZLIB;WITH_PNG;WITH_FREETYPE;WITH_ICU;ENABLE_NETWORK;WITH_PERSONAL_DIR;PERSONAL_DIR=\&quot;OpenTTD\&quot;"
+				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;WIN32_ENABLE_DIRECTMUSIC_SUPPORT;WITH_ZLIB;WITH_LZO;WITH_PNG;WITH_FREETYPE;WITH_ICU;ENABLE_NETWORK;WITH_PERSONAL_DIR;PERSONAL_DIR=\&quot;OpenTTD\&quot;"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="1"
 				UsePrecompiledHeader="0"
@@ -196,7 +196,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib dxguid.lib libfreetype2.lib libicu.lib"
+				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib lzo2.lib dxguid.lib libfreetype2.lib libicu.lib"
 				LinkIncremental="0"
 				SuppressStartupBanner="true"
 				IgnoreDefaultLibraryNames="LIBCMT.lib"
@@ -271,7 +271,7 @@
 				FavorSizeOrSpeed="2"
 				OmitFramePointers="true"
 				AdditionalIncludeDirectories="..\objs\langs;..\src\3rdparty\squirrel\include"
-				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;WIN32_ENABLE_DIRECTMUSIC_SUPPORT;WITH_ZLIB;WITH_PNG;WITH_FREETYPE;WITH_ICU;ENABLE_NETWORK;WITH_PERSONAL_DIR;PERSONAL_DIR=\&quot;OpenTTD\&quot;;_SQ64;WITH_ASSERT"
+				PreprocessorDefinitions="WIN32;NDEBUG;_CONSOLE;WIN32_ENABLE_DIRECTMUSIC_SUPPORT;WITH_ZLIB;WITH_LZO;WITH_PNG;WITH_FREETYPE;WITH_ICU;ENABLE_NETWORK;WITH_PERSONAL_DIR;PERSONAL_DIR=\&quot;OpenTTD\&quot;;_SQ64;WITH_ASSERT"
 				StringPooling="true"
 				ExceptionHandling="1"
 				RuntimeLibrary="0"
@@ -308,7 +308,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib dxguid.lib libfreetype2.lib libicu.lib"
+				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib lzo2.lib dxguid.lib libfreetype2.lib libicu.lib"
 				LinkIncremental="1"
 				SuppressStartupBanner="true"
 				IgnoreDefaultLibraryNames=""
@@ -380,7 +380,7 @@
 				AdditionalOptions="/MP"
 				Optimization="0"
 				AdditionalIncludeDirectories="..\objs\langs;..\src\3rdparty\squirrel\include"
-				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;WIN32_ENABLE_DIRECTMUSIC_SUPPORT;WITH_ZLIB;WITH_PNG;WITH_FREETYPE;WITH_ICU;ENABLE_NETWORK;WITH_PERSONAL_DIR;PERSONAL_DIR=\&quot;OpenTTD\&quot;;_SQ64"
+				PreprocessorDefinitions="WIN32;_DEBUG;_CONSOLE;WIN32_ENABLE_DIRECTMUSIC_SUPPORT;WITH_ZLIB;WITH_LZO;WITH_PNG;WITH_FREETYPE;WITH_ICU;ENABLE_NETWORK;WITH_PERSONAL_DIR;PERSONAL_DIR=\&quot;OpenTTD\&quot;;_SQ64"
 				BasicRuntimeChecks="3"
 				RuntimeLibrary="1"
 				UsePrecompiledHeader="0"
@@ -410,7 +410,7 @@
 			/>
 			<Tool
 				Name="VCLinkerTool"
-				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib dxguid.lib libfreetype2.lib libicu.lib"
+				AdditionalDependencies="winmm.lib ws2_32.lib libpng.lib zlibstat.lib lzo2.lib dxguid.lib libfreetype2.lib libicu.lib"
 				LinkIncremental="0"
 				SuppressStartupBanner="true"
 				IgnoreDefaultLibraryNames="LIBCMT.lib"
@@ -2314,26 +2314,6 @@
 			</File>
 		</Filter>
 		<Filter
-			Name="MiniLZO"
-			>
-			<File
-				RelativePath=".\..\src\3rdparty\minilzo\lzoconf.h"
-				>
-			</File>
-			<File
-				RelativePath=".\..\src\3rdparty\minilzo\lzodefs.h"
-				>
-			</File>
-			<File
-				RelativePath=".\..\src\3rdparty\minilzo\minilzo.c"
-				>
-			</File>
-			<File
-				RelativePath=".\..\src\3rdparty\minilzo\minilzo.h"
-				>
-			</File>
-		</Filter>
-		<Filter
 			Name="Script"
 			>
 			<File