diff --git a/aegisub/build/aegisub_vs2008/aegisub_vs2008.vcproj b/aegisub/build/aegisub_vs2008/aegisub_vs2008.vcproj
index d0d4c503b..2d371f1e8 100644
--- a/aegisub/build/aegisub_vs2008/aegisub_vs2008.vcproj
+++ b/aegisub/build/aegisub_vs2008/aegisub_vs2008.vcproj
@@ -46,9 +46,9 @@
 				PreprocessorDefinitions="WIN32;_DEBUG;_WINDOWS"
 				MinimalRebuild="true"
 				UsePrecompiledHeader="2"
-				PrecompiledHeaderThrough="stdwx.h"
+				PrecompiledHeaderThrough="agi_pre.h"
 				DisableSpecificWarnings="4267"
-				ForcedIncludeFiles="stdwx.h"
+				ForcedIncludeFiles="agi_pre.h"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
@@ -112,9 +112,9 @@
 				PreprocessorDefinitions="WIN32;WIN64;_DEBUG;_WINDOWS"
 				MinimalRebuild="true"
 				UsePrecompiledHeader="2"
-				PrecompiledHeaderThrough="stdwx.h"
+				PrecompiledHeaderThrough="agi_pre.h"
 				DisableSpecificWarnings="4267"
-				ForcedIncludeFiles="stdwx.h"
+				ForcedIncludeFiles="agi_pre.h"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
@@ -178,10 +178,10 @@
 				AdditionalOptions="/MP"
 				PreprocessorDefinitions="WIN32;NDEBUG;_WINDOWS"
 				UsePrecompiledHeader="2"
-				PrecompiledHeaderThrough="stdwx.h"
+				PrecompiledHeaderThrough="agi_pre.h"
 				ProgramDataBaseFileName="$(IntDir)\vc90.pdb"
 				DisableSpecificWarnings="4267"
-				ForcedIncludeFiles="stdwx.h"
+				ForcedIncludeFiles="agi_pre.h"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
@@ -247,9 +247,9 @@
 				Name="VCCLCompilerTool"
 				PreprocessorDefinitions="WIN32;WIN64;NDEBUG;_WINDOWS"
 				UsePrecompiledHeader="2"
-				PrecompiledHeaderThrough="stdwx.h"
+				PrecompiledHeaderThrough="agi_pre.h"
 				DisableSpecificWarnings="4267"
-				ForcedIncludeFiles="stdwx.h"
+				ForcedIncludeFiles="agi_pre.h"
 			/>
 			<Tool
 				Name="VCManagedResourceCompilerTool"
@@ -1316,7 +1316,7 @@
 				>
 			</File>
 			<File
-				RelativePath="..\..\src\stdwx.cpp"
+				RelativePath="..\..\src\agi_pre.cpp"
 				>
 				<FileConfiguration
 					Name="Debug|Win32"
@@ -1352,7 +1352,7 @@
 				</FileConfiguration>
 			</File>
 			<File
-				RelativePath="..\..\src\stdwx.h"
+				RelativePath="..\..\src\agi_pre.h"
 				>
 			</File>
 			<File
diff --git a/aegisub/po/POTFILES.in b/aegisub/po/POTFILES.in
index f093957e7..0619dfd5b 100644
--- a/aegisub/po/POTFILES.in
+++ b/aegisub/po/POTFILES.in
@@ -6,6 +6,9 @@ aegisub_endian.h
 aegisublocale.cpp
 aegisublocale.cpp
 aegisublocale.h
+agi_pre.cpp
+agi_pre.cpp
+agi_pre.h
 ass_attachment.cpp
 ass_attachment.cpp
 ass_attachment.h
@@ -345,9 +348,6 @@ standard_paths.h
 static_bmp.cpp
 static_bmp.cpp
 static_bmp.h
-stdwx.cpp
-stdwx.cpp
-stdwx.h
 string_codec.cpp
 string_codec.cpp
 string_codec.h
diff --git a/aegisub/src/Makefile.am b/aegisub/src/Makefile.am
index a9e5ede77..600725aa1 100644
--- a/aegisub/src/Makefile.am
+++ b/aegisub/src/Makefile.am
@@ -10,10 +10,10 @@ libosxutil_ldflags = -framework CoreFoundation
 endif
 
 if PRECOMPILED_HEADER
-BUILT_SOURCES = stdwx.h.gch
-precompiled_header = stdwx.h
-AM_CXXFLAGS += -Winvalid-pch -fpch-deps -fpch-preprocess -include stdwx.h
-nodist_aegisub_2_2_SOURCES = stdwx.h.gch
+BUILT_SOURCES = agi_pre.h.gch
+precompiled_header = agi_pre.h
+AM_CXXFLAGS += -Winvalid-pch -fpch-deps -fpch-preprocess -include agi_pre.h
+nodist_aegisub_2_2_SOURCES = agi_pre.h.gch
 endif
 
 SUBDIRS = \
@@ -31,8 +31,8 @@ LIBS += @FREETYPE_LIBS@ @FONTCONFIG_LIBS@ @CCMALLOC_LIBS@
 
 if PRECOMPILED_HEADER
 # This doesn't depend on Makefile on purpose, you should already know what you're doing when using this.
-stdwx.h.gch: stdwx.h
-	@CXX@ -include ../acconf.h $(DEFAULT_INCLUDES) @CXXFLAGS@ $(AM_CXXFLAGS) @DEBUG_FLAGS@ @PROFILE_FLAGS@ stdwx.h
+agi_pre.h.gch: agi_pre.h
+	@CXX@ -include ../acconf.h $(DEFAULT_INCLUDES) @CXXFLAGS@ $(AM_CXXFLAGS) @DEBUG_FLAGS@ @PROFILE_FLAGS@ agi_pre.h
 endif
 
 if BUILD_DARWIN
@@ -169,7 +169,6 @@ EXTRA_aegisub_2_2_SOURCES = \
 	dialog_associations.cpp \
 	setup.cpp \
 	spellchecker_hunspell.cpp \
-	stdwx.cpp \
 	subtitle_format_prs.cpp \
 	subtitles_provider_csri.cpp \
 	subtitles_provider_libass.cpp \
diff --git a/aegisub/src/stdwx.cpp b/aegisub/src/agi_pre.cpp
similarity index 94%
rename from aegisub/src/stdwx.cpp
rename to aegisub/src/agi_pre.cpp
index a63aeac36..4e7214f62 100644
--- a/aegisub/src/stdwx.cpp
+++ b/aegisub/src/agi_pre.cpp
@@ -29,7 +29,7 @@
 //
 // $Id$
 
-/// @file stdwx.cpp
+/// @file agi_pre.cpp
 /// @brief Precompiled headers control file, including stdwx.h only to generate precompiled header data
 /// @ingroup main
 ///
@@ -38,7 +38,7 @@
 //
 // Precompiled Header Source File
 //
-// In order to use it, set the project to use stdwx.h as precompiled header and
+// In order to use it, set the project to use agi_pre.h as precompiled header and
 // insert it in every source file (under C/C++ -> Advanced -> Force Includes),
 // then set this file to generate the precompiled header
 //
@@ -48,5 +48,5 @@
 
 #include "config.h"
 
-#include "stdwx.h"
+#include "agi_pre.h"
 
diff --git a/aegisub/src/stdwx.h b/aegisub/src/agi_pre.h
similarity index 97%
rename from aegisub/src/stdwx.h
rename to aegisub/src/agi_pre.h
index 1c066a5d8..a7e426d4e 100644
--- a/aegisub/src/stdwx.h
+++ b/aegisub/src/agi_pre.h
@@ -29,7 +29,7 @@
 //
 // $Id$
 
-/// @file stdwx.h
+/// @file agi_pre.h
 /// @brief Precompiled headers include file, including all headers that should be precompiled
 /// @ingroup main
 ///
@@ -49,13 +49,16 @@
 
 /////////
 // Setup
+#define WIN32_LEAN_AND_MEAN
+#define AGI_PRE
+
+// Block msvc from complaining about not using msvc-specific versions for
+// insecure C functions.
 #ifdef _CRT_SECURE_NO_WARNINGS
 #define _CRT_SECURE_NO_WARNINGS_DEFINED
 #else
 #define _CRT_SECURE_NO_WARNINGS
 #endif
-#define WIN32_LEAN_AND_MEAN
-#define WX_PRE
 
 ///////////////
 // STD headers
diff --git a/aegisub/src/ass_attachment.cpp b/aegisub/src/ass_attachment.cpp
index 74d5ba1fa..10d8684ef 100644
--- a/aegisub/src/ass_attachment.cpp
+++ b/aegisub/src/ass_attachment.cpp
@@ -39,7 +39,7 @@
 // Includes
 #include "config.h"
 
-#ifndef WX_PRE
+#ifndef AGI_PRE
 #include <wx/filename.h>
 #include <wx/wfstream.h>
 #endif
diff --git a/aegisub/src/ass_dialogue.cpp b/aegisub/src/ass_dialogue.cpp
index 1f5ef6845..0e9672638 100644
--- a/aegisub/src/ass_dialogue.cpp
+++ b/aegisub/src/ass_dialogue.cpp
@@ -39,12 +39,12 @@
 // Includes
 #include "config.h"
 
-#ifndef WX_PRE
+#ifndef AGI_PRE
+#include <fstream>
 #include <wx/regex.h>
 #include <wx/tokenzr.h>
 #endif
 
-#include <fstream>
 #include "ass_dialogue.h"
 #include "ass_override.h"
 #include "vfr.h"
diff --git a/aegisub/src/config.h b/aegisub/src/config.h
index fc9cb1990..d9fccf73c 100644
--- a/aegisub/src/config.h
+++ b/aegisub/src/config.h
@@ -1,4 +1,4 @@
-#ifndef WX_PRE
+#ifndef AGI_PRE
 
 #ifdef _WIN32
 
@@ -15,4 +15,4 @@
 
 #endif // __WINDOWS__
 
-#endif // WX_PRE
+#endif // AGI_PRE
diff --git a/aegisub/src/config/config_unix.h b/aegisub/src/config/config_unix.h
index 0b4af24af..228ba20fb 100644
--- a/aegisub/src/config/config_unix.h
+++ b/aegisub/src/config/config_unix.h
@@ -16,8 +16,6 @@
 #include <inttypes.h>
 #endif
 
-#include <stdwx.h>
-
 // These shouldn't be needed any longer, if there are
 // any occurrences of __int64 replace them with long long.
 //typedef int64_t __int64;
diff --git a/aegisub/src/main.cpp b/aegisub/src/main.cpp
index ba6017ac1..c0445d818 100644
--- a/aegisub/src/main.cpp
+++ b/aegisub/src/main.cpp
@@ -39,7 +39,7 @@
 // Includes
 #include "config.h"
 
-#ifndef WX_PRE
+#ifndef AGI_PRE
 #include <wx/config.h>
 #include <wx/datetime.h>
 #include <wx/filefn.h>
diff --git a/aegisub/src/main.h b/aegisub/src/main.h
index a29a7db58..76e503c49 100644
--- a/aegisub/src/main.h
+++ b/aegisub/src/main.h
@@ -38,7 +38,7 @@
 ///////////////////
 // Include headers
 
-#ifndef WX_PRE
+#ifndef AGI_PRE
 #include <wx/app.h>
 #include <wx/file.h>
 #include <wx/stackwalk.h>