diff --git a/.gitignore b/.gitignore
index 9a82e11a..30c19c98 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,10 +1,4 @@
-autoload/vimproc_*.so
-autoload/vimproc_*.dll
-autoload/vimproc_*.dll.old
-autoload/vimproc_*.dll.manifest
-autoload/vimproc_*.exp
-autoload/vimproc_*.lib
-autoload/*.pdb
+lib/*
 doc/tags
 *.obj
 *.o
diff --git a/README.mkd b/README.mkd
index d0becd99..7c5a6725 100644
--- a/README.mkd
+++ b/README.mkd
@@ -25,8 +25,8 @@ Not supported platforms:
 
 * Clone this repo
 * Build vimproc's native extensions (see Building for details)
-* Copy `autoload/*` and `plugin/*` files to your 'runtimepath' directory (see
-  `:help runtimepath`).
+* Copy `autoload/*`, `lib/*` and `plugin/*` files to your 'runtimepath'
+  directory (see `:help runtimepath`).
 
 ### NeoBundle
 
diff --git a/appveyor.yml b/appveyor.yml
index 120a2380..e28e732b 100644
--- a/appveyor.yml
+++ b/appveyor.yml
@@ -24,7 +24,7 @@ build_script:
 test_script:
   - '%APPVEYOR_BUILD_FOLDER%\tools\appveyor.bat test'
 artifacts:
-  - path: autoload/vimproc_*.dll
+  - path: lib/vimproc_*.dll
     name: vimproc.dll
 deploy:
   provider: GitHub
diff --git a/autoload/vimproc.vim b/autoload/vimproc.vim
index 63925a1f..baa0f7ab 100644
--- a/autoload/vimproc.vim
+++ b/autoload/vimproc.vim
@@ -71,7 +71,7 @@ endif
 
 call vimproc#util#set_default(
       \ 'g:vimproc#dll_path',
-      \ expand('<sfile>:p:h') . '/' . s:vimproc_dll_basename,
+      \ expand('<sfile>:p:h:h') . '/lib/' . s:vimproc_dll_basename,
       \ 'g:vimproc_dll_path')
 unlet s:vimproc_dll_basename
 
@@ -141,7 +141,7 @@ if !filereadable(g:vimproc#dll_path) || !has('libcall') "{{{
 endif"}}}
 
 function! vimproc#version() "{{{
-  return str2nr(printf('%2d%02d', 9, 1))
+  return str2nr(printf('%2d%02d', 9, 2))
 endfunction"}}}
 function! vimproc#dll_version() "{{{
   let [dll_version] = s:libcall('vp_dlversion', [])
diff --git a/doc/vimproc.txt b/doc/vimproc.txt
index 1f7c719a..844c2617 100644
--- a/doc/vimproc.txt
+++ b/doc/vimproc.txt
@@ -1,6 +1,6 @@
 *vimproc.txt*	Asynchronous execution plugin for Vim
 
-Version: 9.1
+Version: 9.2
 Author : Shougo <Shougo.Matsu at gmail.com>
 Original Author : Yukihiro Nakadaira <yukihiro.nakadaira at gmail.com>
 License: MIT license  {{{
@@ -48,7 +48,7 @@ I'm maintaining it now.  Instead of external shell (example: 'shell'),
 ==============================================================================
 INSTALL						*vimproc-install*
 
-In first, you get vimproc from git repository.
+In first, you must get vimproc from git repository.
 
 http://github.com/Shougo/vimproc.vim
 
@@ -92,7 +92,8 @@ Mac OS X
 >
 	$ make
 <
-Note: If you want to build for multiple architectures, you can use $ARCHS and $CC variables.
+Note: If you want to build for multiple architectures, you can use $ARCHS and
+$CC variables.
 
 Build for i386 and x86-64:
 >
@@ -379,13 +380,13 @@ VARIABLES 					*vimproc-variables*
 
 						*g:vimproc#dll_path*
 g:vimproc#dll_path	(default
-			Win32: "$VIMRUNTIME/autoload/vimproc_win32.dll"
-			Win64: "$VIMRUNTIME/autoload/vimproc_win64.dll"
-			Cygwin: "$VIMRUNTIME/autoload/vimproc_cygwin.dll"
-			Mac: "$VIMRUNTIME/autoload/vimproc_mac.so"
-			Linux32: "$VIMRUNTIME/autoload/vimproc_linux32.so"
-			Linux64: "$VIMRUNTIME/autoload/vimproc_linux64.so"
-			Others: "$VIMRUNTIME/autoload/vimproc_unix.so")
+			Win32: "$VIMRUNTIME/lib/vimproc_win32.dll"
+			Win64: "$VIMRUNTIME/lib/vimproc_win64.dll"
+			Cygwin: "$VIMRUNTIME/lib/vimproc_cygwin.dll"
+			Mac: "$VIMRUNTIME/lib/vimproc_mac.so"
+			Linux32: "$VIMRUNTIME/lib/vimproc_linux32.so"
+			Linux64: "$VIMRUNTIME/lib/vimproc_linux64.so"
+			Others: "$VIMRUNTIME/lib/vimproc_unix.so")
 		This variable stores a dll name used by vimproc.  You must
 		compile this dll file.  If this dll does not exist, vimproc
 		will echo error.
diff --git a/lib/.gitkeep b/lib/.gitkeep
new file mode 100644
index 00000000..e69de29b
diff --git a/make_android.mak b/make_android.mak
index f8d9e816..2e4c5dc1 100644
--- a/make_android.mak
+++ b/make_android.mak
@@ -8,9 +8,9 @@
 CFLAGS+=-W -Wall -Wno-unused -Wno-unused-parameter -std=c99 -O2 -fPIC -pedantic
 LDFLAGS+=-shared
 
-TARGET=autoload/vimproc_unix.so
-SRC=autoload/proc.c autoload/ptytty.c
-INC=autoload/vimstack.c autoload/ptytty.h
+TARGET=lib/vimproc_unix.so
+SRC=src/proc.c src/ptytty.c
+INC=src/vimstack.c src/ptytty.h
 
 all: $(TARGET)
 
diff --git a/make_bsd.mak b/make_bsd.mak
index 535912e2..3a23207f 100644
--- a/make_bsd.mak
+++ b/make_bsd.mak
@@ -2,15 +2,15 @@
 
 SUFFIX!=uname -sm | tr '[:upper:]' '[:lower:]' | sed -e 's/ /_/'
 
-TARGET=autoload/vimproc_$(SUFFIX).so
+TARGET=lib/vimproc_$(SUFFIX).so
 
-SRC=autoload/proc.c
+SRC=src/proc.c
 CFLAGS+=-W -O2 -Wall -Wno-unused -Wno-unused-parameter -std=gnu99 -pedantic -shared -fPIC
 LDFLAGS+=-lutil
 
 all: $(TARGET)
 
-$(TARGET): $(SRC) autoload/vimstack.c
+$(TARGET): $(SRC) src/vimstack.c
 	$(CC) $(CFLAGS) -o $(TARGET) $(SRC) $(LDFLAGS)
 
 clean:
diff --git a/make_cygwin.mak b/make_cygwin.mak
index 89305873..87f5ad76 100644
--- a/make_cygwin.mak
+++ b/make_cygwin.mak
@@ -1,11 +1,11 @@
 CFLAGS+=-O2 -W -Wall -Wno-unused -Wno-unused-parameter -use=gnu99 -shared
-TARGET=autoload/vimproc_cygwin.dll
-SRC=autoload/proc.c
+TARGET=lib/vimproc_cygwin.dll
+SRC=src/proc.c
 LDFLAGS+=-lutil
 
 all: $(TARGET)
 
-$(TARGET): $(SRC) autoload/vimstack.c
+$(TARGET): $(SRC) src/vimstack.c
 	gcc $(CFLAGS) -o $(TARGET) $(SRC) $(LDFLAGS)
 
 clean:
diff --git a/make_mac.mak b/make_mac.mak
index 9b1c6ca3..97ead7c7 100644
--- a/make_mac.mak
+++ b/make_mac.mak
@@ -10,15 +10,15 @@ CC=gcc
 endif
 endif
 
-TARGET=autoload/vimproc_mac.so
-SRC=autoload/proc.c
+TARGET=lib/vimproc_mac.so
+SRC=src/proc.c
 ARCHS=
 CFLAGS+=-O2 -W -Wall -Wno-unused -Wno-unused-parameter -bundle -fPIC $(foreach ARCH,$(ARCHS),-arch $(ARCH))
 LDFLAGS=
 
 all: $(TARGET)
 
-$(TARGET): $(SRC) autoload/vimstack.c
+$(TARGET): $(SRC) src/vimstack.c
 	$(CC) $(CFLAGS) -o $(TARGET) $(SRC) $(LDFLAGS)
 
 .PHONY : clean
diff --git a/make_mingw32.mak b/make_mingw32.mak
index 002fd935..5302166b 100644
--- a/make_mingw32.mak
+++ b/make_mingw32.mak
@@ -1,14 +1,14 @@
 # for MinGW.
 
-TARGET=autoload/vimproc_win32.dll
-SRC=autoload/proc_w32.c
+TARGET=lib/vimproc_win32.dll
+SRC=src/proc_w32.c
 CC=gcc
 CFLAGS+=-O2 -Wall -shared -m32
 LDFLAGS+=-lwsock32
 
 all: $(TARGET)
 
-$(TARGET): $(SRC) autoload/vimstack.c
+$(TARGET): $(SRC) src/vimstack.c
 	$(CC) $(CFLAGS) -o $(TARGET) $(SRC) $(LDFLAGS)
 
 clean:
diff --git a/make_mingw64.mak b/make_mingw64.mak
index 6c690e52..32d737dd 100644
--- a/make_mingw64.mak
+++ b/make_mingw64.mak
@@ -1,14 +1,14 @@
 # for MinGW.
 
-TARGET=autoload/vimproc_win64.dll
-SRC=autoload/proc_w32.c
+TARGET=lib/vimproc_win64.dll
+SRC=src/proc_w32.c
 CC=x86_64-w64-mingw32-gcc
 CFLAGS+=-O2 -Wall -shared -m64
 LDFLAGS+=-lwsock32
 
 all: $(TARGET)
 
-$(TARGET): $(SRC) autoload/vimstack.c
+$(TARGET): $(SRC) src/vimstack.c
 	$(CC) $(CFLAGS) -o $(TARGET) $(SRC) $(LDFLAGS)
 
 clean:
diff --git a/make_msvc.mak b/make_msvc.mak
index c8a4987c..e452ab83 100644
--- a/make_msvc.mak
+++ b/make_msvc.mak
@@ -42,7 +42,8 @@ VIMPROC=vimproc_win64
 VIMPROC=vimproc_win32
 !endif
 
-SRCDIR = autoload
+SRCDIR = src
+LIBDIR = lib
 OUTDIR = $(SRCDIR)\obj$(CPU)
 
 OBJS = $(OUTDIR)/proc_w32.obj
@@ -52,16 +53,16 @@ CFLAGS = $(CFLAGS) $(DEFINES) /wd4100 /wd4127 /O2
 
 # RULES
 
-build: $(SRCDIR)\$(VIMPROC).dll
+build: $(LIBDIR)\$(VIMPROC).dll
 
 clean:
 	-IF EXIST $(OUTDIR)/nul RMDIR /s /q $(OUTDIR)
-	-DEL /F /Q $(SRCDIR)\vimproc_win32.*
-	-DEL /F /Q $(SRCDIR)\vimproc_win64.*
+	-DEL /F /Q $(LIBDIR)\vimproc_win32.*
+	-DEL /F /Q $(LIBDIR)\vimproc_win64.*
 	-DEL /F /Q $(SRCDIR)\*.obj
 	-DEL /F /Q $(SRCDIR)\*.pdb
 
-$(SRCDIR)\$(VIMPROC).dll: $(OBJS)
+$(LIBDIR)\$(VIMPROC).dll: $(OBJS)
 	$(link) /NOLOGO $(ldebug) $(dlllflags) $(conlibsdll) $(LFLAGS) \
 		/OUT:$@ $(OBJS) shell32.lib
 	IF EXIST $@.manifest \
diff --git a/make_sunos.mak b/make_sunos.mak
index 4aadcc10..416ec4ae 100644
--- a/make_sunos.mak
+++ b/make_sunos.mak
@@ -11,9 +11,9 @@ LDFLAGS+=-shared
 endif
 CPPFLAGS+=-D_XPG6 -D__EXTENSIONS__
 
-TARGET=autoload/vimproc_unix.so
-SRC=autoload/proc.c autoload/ptytty.c
-INC=autoload/vimstack.c autoload/ptytty.h
+TARGET=lib/vimproc_unix.so
+SRC=src/proc.c src/ptytty.c
+INC=src/vimstack.c src/ptytty.h
 
 all: $(TARGET)
 
diff --git a/make_unix.mak b/make_unix.mak
index 055bd1b8..85eeaedd 100644
--- a/make_unix.mak
+++ b/make_unix.mak
@@ -5,15 +5,15 @@ ifneq (,$(wildcard /lib*/ld-linux*.so.2))
 else
 	SUFFIX=unix
 endif
-TARGET=autoload/vimproc_$(SUFFIX).so
+TARGET=lib/vimproc_$(SUFFIX).so
 
-SRC=autoload/proc.c
+SRC=src/proc.c
 CFLAGS+=-W -O2 -Wall -Wno-unused -Wno-unused-parameter -std=gnu99 -pedantic -shared -fPIC
 LDFLAGS+=-lutil
 
 all: $(TARGET)
 
-$(TARGET): $(SRC) autoload/vimstack.c
+$(TARGET): $(SRC) src/vimstack.c
 	$(CC) $(CFLAGS) -o $(TARGET) $(SRC) $(LDFLAGS)
 
 clean:
diff --git a/autoload/fakepoll.h b/src/fakepoll.h
similarity index 100%
rename from autoload/fakepoll.h
rename to src/fakepoll.h
diff --git a/autoload/proc.c b/src/proc.c
similarity index 99%
rename from autoload/proc.c
rename to src/proc.c
index 9c58a1c8..b8f174d7 100644
--- a/autoload/proc.c
+++ b/src/proc.c
@@ -168,7 +168,7 @@ vp_dlclose(char *args)
 const char *
 vp_dlversion(char *args)
 {
-    vp_stack_push_num(&_result, "%2d%02d", 9, 1);
+    vp_stack_push_num(&_result, "%2d%02d", 9, 2);
     return vp_stack_return(&_result);
 }
 
diff --git a/autoload/proc_w32.c b/src/proc_w32.c
similarity index 99%
rename from autoload/proc_w32.c
rename to src/proc_w32.c
index d391b4be..e69daa71 100644
--- a/autoload/proc_w32.c
+++ b/src/proc_w32.c
@@ -228,7 +228,7 @@ vp_dlclose(char *args)
 const char *
 vp_dlversion(char *args)
 {
-    vp_stack_push_num(&_result, "%2d%02d", 9, 1);
+    vp_stack_push_num(&_result, "%2d%02d", 9, 2);
     return vp_stack_return(&_result);
 }
 
diff --git a/autoload/ptytty.c b/src/ptytty.c
similarity index 100%
rename from autoload/ptytty.c
rename to src/ptytty.c
diff --git a/autoload/ptytty.h b/src/ptytty.h
similarity index 100%
rename from autoload/ptytty.h
rename to src/ptytty.h
diff --git a/autoload/vimstack.c b/src/vimstack.c
similarity index 100%
rename from autoload/vimstack.c
rename to src/vimstack.c
diff --git a/tools/update-dll-mingw.bat b/tools/update-dll-mingw.bat
index 185f300a..af51ee5b 100755
--- a/tools/update-dll-mingw.bat
+++ b/tools/update-dll-mingw.bat
@@ -47,10 +47,10 @@ if ERRORLEVEL 1 (
   rem Build failed.
 
   rem Try to delete old DLLs.
-  if exist autoload\%vimproc_dllname%.old del autoload\%vimproc_dllname%.old
-  if exist autoload\%vimproc_dllname%     del autoload\%vimproc_dllname%
+  if exist lib\%vimproc_dllname%.old del lib\%vimproc_dllname%.old
+  if exist lib\%vimproc_dllname%     del lib\%vimproc_dllname%
   rem If the DLL couldn't delete (may be it is in use), rename it.
-  if exist autoload\%vimproc_dllname%     ren autoload\%vimproc_dllname% %vimproc_dllname%.old
+  if exist lib\%vimproc_dllname%     ren lib\%vimproc_dllname% %vimproc_dllname%.old
 
   mingw32-make -f make_mingw%vimproc_arch%.mak %1 %2 %3 %4 %5 %6 %7 %8 %9
 )