diff --git a/ext_tools_doc/pgd16cnv.md b/ext_tools_doc/pgd16cnv.md
new file mode 100644
index 0000000..7521888
--- /dev/null
+++ b/ext_tools_doc/pgd16cnv.md
@@ -0,0 +1,19 @@
+# pgd16cnv
+[zurapce library](https://github.com/zurachu/zurapce)用16階調拡張P/ECE BMPコンバータ
+
+8bit or 4bitのWindows BMPを、
+[zurapce library](https://github.com/zurachu/zurapce)のLDirect_DrawObject()で描画できる
+16階調拡張P/ECE BMPに変換します。
+
+## 8bit or 4bit Windoes BMP の作成
+
+グレースケールで、パレットの0番～15番を白～黒にして作成して下さい。
+8bit の場合は、それ以外の色は透過色として扱われます。
+幅は、8の倍数にしてください（通常のP/ECE BMPと同様の制約）
+
+## コンバータ実行方法
+
+    pgd16cnv [option] bmpfile ...
+    option -t テキスト出力 (.c) デフォルト
+           -b バイナリ出力 (.pgx)
+    bmpfile Windows BMP ファイル名 複数指定可能、ワイルドカードも使えます
diff --git a/mk.bat b/mk.bat
index 69bf752..0c1eff9 100644
--- a/mk.bat
+++ b/mk.bat
@@ -7,7 +7,7 @@ del *T.BM2 F*.BM2 THUM*.BM2 THLF*.BM2 BAR*.BM2 BUTTON*.BM2 NE*.BM2 OPTION*.BM2
 del ALBUM.BM2 BG.BM2 DATE.BM2 FRAME.BM2 GENERAL.BM2 MAPSELECT.BM2 MEMOCA.BM2 SAKURA.BM2 SAVELOAD.BM2 TITLE.BM2 YESNO.BM2
 th2bm2cmv *.BM2
 pceth2bmp *.bmp
-pgd16cmv -b *.bmp
+pgd16cnv -b *.bmp
 
 copy /Y CAL\* .\
 
diff --git a/pceth2_win.sln b/pceth2_win.sln
index dd671ba..2e0f1c9 100644
--- a/pceth2_win.sln
+++ b/pceth2_win.sln
@@ -4,8 +4,6 @@ VisualStudioVersion = 15.0.26430.6
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "unpack000", "unpack000\unpack000.vcxproj", "{9AE56C73-F8CE-498F-88C1-62E7F15735A8}"
 EndProject
-Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pgd16cmv", "pgd16cmv\pgd16cmv.vcxproj", "{234D94A6-ABBA-44CC-811F-096DA5810855}"
-EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "pceth2bmp", "pceth2bmp\pceth2bmp.vcxproj", "{4C2B6180-E2EC-484E-B94A-939B6A9E297D}"
 EndProject
 Project("{8BC9CEB8-8B4A-11D0-8D11-00A0C91BC942}") = "th2bm2cmv", "th2bm2cmv\th2bm2cmv.vcxproj", "{58D687AE-AF84-4555-B9EE-725F1E50DE1F}"
@@ -24,10 +22,6 @@ Global
 		{9AE56C73-F8CE-498F-88C1-62E7F15735A8}.Debug|x86.Build.0 = Debug|Win32
 		{9AE56C73-F8CE-498F-88C1-62E7F15735A8}.Release|x86.ActiveCfg = Release|Win32
 		{9AE56C73-F8CE-498F-88C1-62E7F15735A8}.Release|x86.Build.0 = Release|Win32
-		{234D94A6-ABBA-44CC-811F-096DA5810855}.Debug|x86.ActiveCfg = Debug|Win32
-		{234D94A6-ABBA-44CC-811F-096DA5810855}.Debug|x86.Build.0 = Debug|Win32
-		{234D94A6-ABBA-44CC-811F-096DA5810855}.Release|x86.ActiveCfg = Release|Win32
-		{234D94A6-ABBA-44CC-811F-096DA5810855}.Release|x86.Build.0 = Release|Win32
 		{4C2B6180-E2EC-484E-B94A-939B6A9E297D}.Debug|x86.ActiveCfg = Debug|Win32
 		{4C2B6180-E2EC-484E-B94A-939B6A9E297D}.Debug|x86.Build.0 = Debug|Win32
 		{4C2B6180-E2EC-484E-B94A-939B6A9E297D}.Release|x86.ActiveCfg = Release|Win32
diff --git a/pgd16cmv/main.cpp b/pgd16cmv/main.cpp
deleted file mode 100644
index 088d280..0000000
--- a/pgd16cmv/main.cpp
+++ /dev/null
@@ -1,163 +0,0 @@
-/*
- *	pgd16cmv
- *	4�^8bit�����kBMP��16�K���g��PIECE_BMP�R���o�[�^
- *
- *	(c)2005 �ĂƂ灚�ۂ���
- *
- *	2005/02/16	����
- *	2005/02/20	�����̃��C���h�J�[�h�Ή��isetargv.obj�������N�j
- */
-
-#include <windows.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <malloc.h>
-
-typedef struct tagPBMP_FILEHEADER{
-	DWORD	head;		//	HEADER   'PBEX'
-	DWORD	fsize;		//	�t�@�C���� �iBYTE�P�ʁj
-	BYTE	bpp;		//	bit�[�x  �i4�j
-	BYTE	mask;		//	�}�X�N��bit�[�x  �i0/1�j
-	short	w;			//	X��		8�s�N�Z���P�ʌ���
-	short	h;			//	Y����		
-	DWORD	buf_size;	//	BMP�T�C�Y	�iBYTE�P�ʁj
-}PBMP_FILEHEADER;
-
-int main(int argc, char *argv[])
-{
-	FILE	*fp = NULL;
-	BITMAPFILEHEADER	bf;
-	BITMAPINFOHEADER	bi;
-	PBMP_FILEHEADER		pb;
-	BYTE	*bmp = NULL, *buf = NULL, *mask = NULL;
-	char	output_flag = 't';
-	char	path[_MAX_PATH];
-	char	drive[_MAX_DRIVE];
-	char	dir[_MAX_DIR];
-	char	fname[_MAX_FNAME];
-	char	ext[_MAX_EXT];
-
-	if(argc == 1) {	// usage
-		fprintf(stderr, "4�^8bit�����kBMP��16�K���g��PIECE_BMP�R���o�[�^\n");
-		fprintf(stderr, "pgd16cmv [option] filename ..\n");
-		fprintf(stderr, "-b �o�C�i���o��(.pgx)\n");
-		fprintf(stderr, "-t �e�L�X�g�o��(.c)�f�t�H���g\n");
-		return 1;
-	}
-
-	for(int i = 1; i < argc; i++) {
-		if(!strcmp(argv[i], "-t")) {	// �Ȍ�̃t�@�C���̓e�L�X�g�o��
-			output_flag = 't';
-			continue;
-		}
-		if(!strcmp(argv[i], "-b")) {	// �Ȍ�̃t�@�C���̓o�C�i���o��
-			output_flag = 'b';
-			continue;
-		}
-
-		_splitpath(argv[i], drive, dir, fname, ext);
-		if((fp = fopen(argv[i], "rb")) == NULL)	goto ERR;
-		// BITMAPFILEHEADER
-		if(fread(&bf, 1, sizeof(BITMAPFILEHEADER), fp) != sizeof(BITMAPFILEHEADER)) goto ERR;
-		if(strncmp((char*)&bf.bfType, "BM", 2)) goto ERR;
-		// BITMAPINFOHEADER
-		if(fread(&bi, 1, sizeof(BITMAPINFOHEADER), fp) != sizeof(BITMAPINFOHEADER)) goto ERR;
-		if(bi.biSize != sizeof(BITMAPINFOHEADER)) goto ERR;
-		if(bi.biWidth % 8)	goto ERR;	// ����8�s�N�Z���P��
-		if(bi.biBitCount != 8 && bi.biBitCount != 4)	goto ERR; // 4/8bit
-		if(bi.biCompression != BI_RGB)	goto ERR;	// �����k
-		if(bi.biClrUsed == 0)	bi.biClrUsed = 1 << bi.biBitCount;
-		// RGBQUAD[bi.biClrUsed]�i�ǂݔ�΂��j
-		if(fseek(fp, sizeof(RGBQUAD) * bi.biClrUsed, SEEK_CUR))	goto ERR;
-		// BITMAP�{��
-		if((bmp = (BYTE*)malloc(bi.biWidth * bi.biHeight * bi.biBitCount / 8)) == NULL)	goto ERR;
-		if(bi.biHeight < 0) {	// �g�b�v�_�E��
-			fread(bmp, 1, bi.biWidth * bi.biHeight * bi.biBitCount / 8, fp);
-			bi.biHeight = -bi.biHeight;
-		} else {				// �{�g���A�b�v
-			for(int y = bi.biHeight - 1; y >= 0; y--) {
-				fread(bmp + bi.biWidth * y * bi.biBitCount / 8, 1, bi.biWidth * bi.biBitCount / 8, fp);
-			}
-		}
-		fclose(fp);
-
-		// PBMP_FILEHEADER
-		strncpy((char*)&pb.head, "XEBP", sizeof(DWORD));
-		pb.bpp	= 4;
-		pb.mask	= 0;
-		pb.w	= (short)bi.biWidth;
-		pb.h	= (short)bi.biHeight;
-		// PIECE_BMP�{��
-		if((buf  = (BYTE*)malloc(pb.w * pb.h / 2)) == NULL)	goto ERR;
-		if((mask = (BYTE*)malloc(pb.w * pb.h / 8)) == NULL)	goto ERR;
-		if(bi.biBitCount == 8) {	// 8bit���}�X�N�L/��16�K��
-			BYTE *b = buf, *m = mask;
-			for(int j = 0; j < pb.w * pb.h; j += 8) {	// �}�X�N
-				for(int k = 0; k < 8; k++) {
-					*m <<= 1;
-					if(bmp[j+k] & 0xF0) {
-						bmp[j+k] = 0;
-						*m |= 1;
-						pb.mask = 1;
-					}
-				}
-				m++;
-			}
-			for(int j = 0; j < pb.w * pb.h; j += 2) {	// ��f
-				*b++ = bmp[j] << 4 | bmp[j+1];
-			}
-		} else {					// 4bit���}�X�N��16�K��
-			memcpy(buf, bmp, pb.w * pb.h / 2);
-		}
-		// PBMP_FILEHEADER
-		pb.buf_size = (pb.bpp + pb.mask) * pb.w * pb.h / 8;
-		pb.fsize = sizeof(PBMP_FILEHEADER) + pb.buf_size;
-		free(bmp);
-		bmp = NULL;
-
-		if(output_flag == 't') {	// �e�L�X�g�o��
-			_makepath(path, drive, dir, fname, ".c");
-			if((fp = fopen(path, "wt")) == NULL)	goto ERR;
-			fprintf(fp, "unsigned char %s[] = {\n", fname);
-			BYTE *p = (BYTE*)&pb;
-			for(int j = 0; j < sizeof(PBMP_FILEHEADER); j++)	fprintf(fp, "0x%02x, ",*p++);
-			fprintf(fp, "\n");
-			p = buf;
-			for(int y = 0; y < pb.h; y++) {
-				for(int x = 0; x < pb.w; x += 2) {
-					fprintf(fp, "0x%02x, ", *p++);
-				}
-				fprintf(fp, "\n");
-			}
-			if(pb.mask) {
-				p = mask;
-				for(int y = 0; y < pb.h; y++) {
-					for(int x = 0; x < pb.w; x += 8) {
-						fprintf(fp, "0x%02x, ", *p++);
-					}
-					fprintf(fp, "\n");
-				}
-			}
-			fprintf(fp, "\n};\n");
-		} else {					// �o�C�i���o��
-			_makepath(path, drive, dir, fname, ".pgx");
-			if((fp = fopen(path, "wb")) == NULL)	goto ERR;
-			fwrite(&pb, 1, sizeof(PBMP_FILEHEADER), fp);
-			fwrite(buf, 1, pb.w * pb.h / 2, fp);
-			if(pb.mask)	fwrite(mask, 1, pb.w * pb.h / 8, fp);
-		}
-		printf("%s - �������܂����B\n", path);
-		goto FREE;
-
-ERR:
-		fprintf(stderr, "%s - ���s���܂����B\n", argv[i]);
-FREE:
-		if(fp	!= NULL)	fclose(fp);
-		if(bmp	!= NULL)	free(bmp);
-		if(buf	!= NULL)	free(buf);
-		if(mask	!= NULL)	free(mask);
-	}
-
-	return 0;
-}
\ No newline at end of file
diff --git a/pgd16cmv/pgd16cmv.vcxproj b/pgd16cmv/pgd16cmv.vcxproj
deleted file mode 100644
index d76cc55..0000000
--- a/pgd16cmv/pgd16cmv.vcxproj
+++ /dev/null
@@ -1,96 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project DefaultTargets="Build" ToolsVersion="15.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup Label="ProjectConfigurations">
-    <ProjectConfiguration Include="Debug|Win32">
-      <Configuration>Debug</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-    <ProjectConfiguration Include="Release|Win32">
-      <Configuration>Release</Configuration>
-      <Platform>Win32</Platform>
-    </ProjectConfiguration>
-  </ItemGroup>
-  <PropertyGroup Label="Globals">
-    <ProjectGuid>{234D94A6-ABBA-44CC-811F-096DA5810855}</ProjectGuid>
-    <Keyword>Win32Proj</Keyword>
-    <WindowsTargetPlatformVersion>10.0.15063.0</WindowsTargetPlatformVersion>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.Default.props" />
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <PlatformToolset>v141</PlatformToolset>
-    <CharacterSet>MultiByte</CharacterSet>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="Configuration">
-    <ConfigurationType>Application</ConfigurationType>
-    <PlatformToolset>v141</PlatformToolset>
-    <CharacterSet>MultiByte</CharacterSet>
-  </PropertyGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.props" />
-  <ImportGroup Label="ExtensionSettings">
-  </ImportGroup>
-  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'" Label="PropertySheets">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-  </ImportGroup>
-  <ImportGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'" Label="PropertySheets">
-    <Import Project="$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props" Condition="exists('$(UserRootDir)\Microsoft.Cpp.$(Platform).user.props')" Label="LocalAppDataPlatform" />
-  </ImportGroup>
-  <PropertyGroup Label="UserMacros" />
-  <PropertyGroup>
-    <_ProjectFileVersion>15.0.26419.1</_ProjectFileVersion>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
-    <OutDir>Debug\</OutDir>
-    <IntDir>Debug\</IntDir>
-    <LinkIncremental>true</LinkIncremental>
-  </PropertyGroup>
-  <PropertyGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
-    <OutDir>Release\</OutDir>
-    <IntDir>Release\</IntDir>
-    <LinkIncremental>false</LinkIncremental>
-  </PropertyGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Debug|Win32'">
-    <ClCompile>
-      <Optimization>Disabled</Optimization>
-      <PreprocessorDefinitions>WIN32;_DEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <MinimalRebuild>true</MinimalRebuild>
-      <BasicRuntimeChecks>EnableFastChecks</BasicRuntimeChecks>
-      <RuntimeLibrary>MultiThreadedDebug</RuntimeLibrary>
-      <PrecompiledHeader />
-      <WarningLevel>Level3</WarningLevel>
-      <DebugInformationFormat>EditAndContinue</DebugInformationFormat>
-    </ClCompile>
-    <Link>
-      <AdditionalDependencies>setargv.obj;%(AdditionalDependencies)</AdditionalDependencies>
-      <OutputFile>$(OutDir)pgd16cmv.exe</OutputFile>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-      <ProgramDatabaseFile>$(OutDir)pgd16cmv.pdb</ProgramDatabaseFile>
-      <SubSystem>Console</SubSystem>
-      <TargetMachine>MachineX86</TargetMachine>
-    </Link>
-  </ItemDefinitionGroup>
-  <ItemDefinitionGroup Condition="'$(Configuration)|$(Platform)'=='Release|Win32'">
-    <ClCompile>
-      <PreprocessorDefinitions>WIN32;NDEBUG;_CONSOLE;%(PreprocessorDefinitions)</PreprocessorDefinitions>
-      <RuntimeLibrary>MultiThreaded</RuntimeLibrary>
-      <PrecompiledHeader />
-      <WarningLevel>Level3</WarningLevel>
-      <DebugInformationFormat>ProgramDatabase</DebugInformationFormat>
-    </ClCompile>
-    <Link>
-      <AdditionalDependencies>setargv.obj;%(AdditionalDependencies)</AdditionalDependencies>
-      <OutputFile>$(OutDir)../../pgd16cmv.exe</OutputFile>
-      <GenerateDebugInformation>true</GenerateDebugInformation>
-      <SubSystem>Console</SubSystem>
-      <OptimizeReferences>true</OptimizeReferences>
-      <EnableCOMDATFolding>true</EnableCOMDATFolding>
-      <TargetMachine>MachineX86</TargetMachine>
-    </Link>
-  </ItemDefinitionGroup>
-  <ItemGroup>
-    <ClCompile Include="main.cpp" />
-  </ItemGroup>
-  <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
-  <ImportGroup Label="ExtensionTargets">
-  </ImportGroup>
-</Project>
\ No newline at end of file
diff --git a/pgd16cmv/pgd16cmv.vcxproj.filters b/pgd16cmv/pgd16cmv.vcxproj.filters
deleted file mode 100644
index f0fee13..0000000
--- a/pgd16cmv/pgd16cmv.vcxproj.filters
+++ /dev/null
@@ -1,22 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
-  <ItemGroup>
-    <Filter Include="ソース ファイル">
-      <UniqueIdentifier>{4FC737F1-C7A5-4376-A066-2A32D752A2FF}</UniqueIdentifier>
-      <Extensions>cpp;c;cxx;def;odl;idl;hpj;bat;asm;asmx</Extensions>
-    </Filter>
-    <Filter Include="ヘッダー ファイル">
-      <UniqueIdentifier>{93995380-89BD-4b04-88EB-625FBE52EBFB}</UniqueIdentifier>
-      <Extensions>h;hpp;hxx;hm;inl;inc;xsd</Extensions>
-    </Filter>
-    <Filter Include="リソース ファイル">
-      <UniqueIdentifier>{67DA6AB6-F800-4c08-8B7A-83BB121AAD01}</UniqueIdentifier>
-      <Extensions>rc;ico;cur;bmp;dlg;rc2;rct;bin;rgs;gif;jpg;jpeg;jpe;resx</Extensions>
-    </Filter>
-  </ItemGroup>
-  <ItemGroup>
-    <ClCompile Include="main.cpp">
-      <Filter>ソース ファイル</Filter>
-    </ClCompile>
-  </ItemGroup>
-</Project>
\ No newline at end of file