diff --git a/CPP/appveyor.cmd b/CPP/appveyor.cmd
index 2827732b..99b96fc1 100644
--- a/CPP/appveyor.cmd
+++ b/CPP/appveyor.cmd
@@ -40,14 +40,19 @@ goto build_vc
 
 
 :build_vc
+FOR /R .\ %%d IN (ARM X64 O) DO rd /S /Q %%d 2>NUL
 set PATH=%OPATH%
-FOR /R .\ %%d IN (AMD64 O) DO rd /S /Q %%d 2>NUL
 call "C:\Program Files (x86)\Microsoft Visual Studio %VC%\VC\vcvarsall.bat" x86
 set OUTDIR=%APPVEYOR_BUILD_FOLDER%\bin-%VC%-x32
 call build-x32.cmd
+set PATH=%OPATH%
 call "C:\Program Files (x86)\Microsoft Visual Studio %VC%\VC\vcvarsall.bat" x86_amd64
 set OUTDIR=%APPVEYOR_BUILD_FOLDER%\bin-%VC%-x64
 call build-x64.cmd
+set PATH=%OPATH%
+call "C:\Program Files (x86)\Microsoft Visual Studio %VC%\VC\vcvarsall.bat" x86_arm
+set OUTDIR=%APPVEYOR_BUILD_FOLDER%\bin-%VC%-arm
+call build-arm.cmd
 goto %NEXT%
 
 :build_sdk
diff --git a/CPP/build-arm.cmd b/CPP/build-arm.cmd
new file mode 100644
index 00000000..a614129d
--- /dev/null
+++ b/CPP/build-arm.cmd
@@ -0,0 +1,101 @@
+@echo off
+
+set ROOT=%cd%\7zip
+if not defined OUTDIR set OUTDIR=%ROOT%\binArm
+if not defined ERRFILE set ERRFILE=%cd%\error.txt
+mkdir %OUTDIR%
+
+set OPTS=PLATFORM=arm MY_STATIC_LINK=1 /NOLOGO
+
+cd %ROOT%\Bundles\Format7zExtract
+nmake %OPTS%
+IF %errorlevel% NEQ 0 echo "Error x64 @ 7zxa.dll" >> %ERRFILE%
+copy arm\7zxa.dll %OUTDIR%\7zxa.dll
+
+cd %ROOT%\Bundles\Format7z
+nmake %OPTS%
+IF %errorlevel% NEQ 0 echo "Error x64 @ 7za.dll" >> %ERRFILE%
+copy arm\7za.dll %OUTDIR%\7za.dll
+
+cd %ROOT%\Bundles\Format7zF
+nmake %OPTS%
+IF %errorlevel% NEQ 0 echo "Error x64 @ 7z.dll" >> %ERRFILE%
+copy arm\7z.dll %OUTDIR%\7z.dll
+
+cd %ROOT%\UI\FileManager
+nmake %OPTS%
+IF %errorlevel% NEQ 0 echo "Error x64 @ 7zFM.exe" >> %ERRFILE%
+copy arm\7zFM.exe %OUTDIR%\7zFM.exe
+
+cd %ROOT%\UI\GUI
+nmake %OPTS%
+IF %errorlevel% NEQ 0 echo "Error x64 @ 7zG.exe" >> %ERRFILE%
+copy arm\7zG.exe %OUTDIR%\7zG.exe
+
+cd %ROOT%\UI\Explorer
+nmake %OPTS%
+IF %errorlevel% NEQ 0 echo "Error x64 @ 7-zip.dll" >> %ERRFILE%
+copy arm\7-zip.dll %OUTDIR%\7-zip.dll
+
+cd %ROOT%\Bundles\SFXWin
+nmake %OPTS%
+IF %errorlevel% NEQ 0 echo "Error x64 @ 7z.sfx" >> %ERRFILE%
+copy arm\7z.sfx %OUTDIR%\7z.sfx
+
+cd %ROOT%\Bundles\Codec_brotli
+nmake %OPTS%
+IF %errorlevel% NEQ 0 echo "Error x64 @ brotli-arm.dll" >> %ERRFILE%
+copy arm\brotli.dll %OUTDIR%\brotli-arm.dll
+
+cd %ROOT%\Bundles\Codec_lizard
+nmake %OPTS%
+IF %errorlevel% NEQ 0 echo "Error x64 @ lizard-arm.dll" >> %ERRFILE%
+copy arm\lizard.dll %OUTDIR%\lizard-arm.dll
+
+cd %ROOT%\Bundles\Codec_lz4
+nmake %OPTS%
+IF %errorlevel% NEQ 0 echo "Error x64 @ lz4-arm.dll" >> %ERRFILE%
+copy arm\lz4.dll %OUTDIR%\lz4-arm.dll
+
+cd %ROOT%\Bundles\Codec_lz5
+nmake %OPTS%
+IF %errorlevel% NEQ 0 echo "Error x64 @ lz5-arm.dll" >> %ERRFILE%
+copy arm\lz5.dll %OUTDIR%\lz5-arm.dll
+
+cd %ROOT%\Bundles\Codec_zstd
+nmake %OPTS%
+IF %errorlevel% NEQ 0 echo "Error x64 @ zstd-arm.dll" >> %ERRFILE%
+copy arm\zstd.dll %OUTDIR%\zstd-arm.dll
+
+cd %ROOT%\Bundles\Codec_flzma2
+nmake %OPTS%
+IF %errorlevel% NEQ 0 echo "Error x64 @ flzma2-arm.dll" >> %ERRFILE%
+copy arm\flzma2.dll %OUTDIR%\flzma2-arm.dll
+
+cd %ROOT%\..\..\C\Util\7zipInstall
+nmake %OPTS%
+IF %errorlevel% NEQ 0 echo "Error x64 @ Install-arm.exe" >> %ERRFILE%
+copy arm\7zipInstall.exe %OUTDIR%\Install-arm.exe
+
+cd %ROOT%\..\..\C\Util\7zipUninstall
+nmake %OPTS%
+IF %errorlevel% NEQ 0 echo "Error x64 @ Uninstall.exe" >> %ERRFILE%
+copy arm\7zipUninstall.exe %OUTDIR%\Uninstall.exe
+
+cd %ROOT%\UI\Console
+nmake %OPTS%
+IF %errorlevel% NEQ 0 echo "Error x64 @ 7z.exe" >> %ERRFILE%
+copy arm\7z.exe %OUTDIR%\7z.exe
+
+cd %ROOT%\Bundles\SFXCon
+nmake %OPTS%
+IF %errorlevel% NEQ 0 echo "Error x64 @ 7zCon.sfx" >> %ERRFILE%
+copy arm\7zCon.sfx %OUTDIR%\7zCon.sfx
+
+cd %ROOT%\Bundles\Alone
+nmake %OPTS%
+IF %errorlevel% NEQ 0 echo "Error x64 @ 7za.exe" >> %ERRFILE%
+copy arm\7za.exe %OUTDIR%\7za.exe
+
+:ende
+cd %ROOT%\..
diff --git a/CPP/build-ia64.cmd b/CPP/build-ia64.cmd
deleted file mode 100644
index 1d3ac3ef..00000000
--- a/CPP/build-ia64.cmd
+++ /dev/null
@@ -1,102 +0,0 @@
-@echo off
-
-set ROOT=%cd%\7zip
-if not defined OUTDIR set OUTDIR=%ROOT%\binIA64
-mkdir %OUTDIR%
-
-set OPTS=CPU=IA64 MY_STATIC_LINK=1 /NOLOGO
-set LFLAGS=/SUBSYSTEM:WINDOWS,"5.02"
-
-cd %ROOT%\Bundles\Format7zExtract
-nmake %OPTS%
-IF %errorlevel% NEQ 0 echo "Error ia64 @ 7zxa.dll" >> %ERRFILE%
-copy IA64\7zxa.dll %OUTDIR%\7zxa.dll
-
-cd %ROOT%\Bundles\Format7z
-nmake %OPTS%
-IF %errorlevel% NEQ 0 echo "Error ia64 @ 7za.dll" >> %ERRFILE%
-copy IA64\7za.dll %OUTDIR%\7za.dll
-
-cd %ROOT%\Bundles\Format7zF
-nmake %OPTS%
-IF %errorlevel% NEQ 0 echo "Error ia64 @ 7z.dll" >> %ERRFILE%
-copy IA64\7z.dll %OUTDIR%\7z.dll
-
-cd %ROOT%\UI\FileManager
-nmake %OPTS%
-IF %errorlevel% NEQ 0 echo "Error ia64 @ 7zFM.exe" >> %ERRFILE%
-copy IA64\7zFM.exe %OUTDIR%\7zFM.exe
-
-cd %ROOT%\UI\GUI
-nmake %OPTS%
-IF %errorlevel% NEQ 0 echo "Error ia64 @ 7zG.exe" >> %ERRFILE%
-copy IA64\7zG.exe %OUTDIR%\7zG.exe
-
-cd %ROOT%\UI\Explorer
-nmake %OPTS%
-IF %errorlevel% NEQ 0 echo "Error ia64 @ 7-zip.dll" >> %ERRFILE%
-copy IA64\7-zip.dll %OUTDIR%\7-zip.dll
-
-cd %ROOT%\Bundles\SFXWin
-nmake %OPTS%
-IF %errorlevel% NEQ 0 echo "Error ia64 @ 7z.sfx" >> %ERRFILE%
-copy IA64\7z.sfx %OUTDIR%\7z.sfx
-
-cd %ROOT%\Bundles\Codec_brotli
-nmake %OPTS%
-IF %errorlevel% NEQ 0 echo "Error ia64 @ brotli-x64.dll" >> %ERRFILE%
-copy IA64\brotli.dll %OUTDIR%\brotli-x64.dll
-
-cd %ROOT%\Bundles\Codec_lizard
-nmake %OPTS%
-IF %errorlevel% NEQ 0 echo "Error ia64 @ lizard-x64.dll" >> %ERRFILE%
-copy IA64\lizard.dll %OUTDIR%\lizard-x64.dll
-
-cd %ROOT%\Bundles\Codec_lz4
-nmake %OPTS%
-IF %errorlevel% NEQ 0 echo "Error ia64 @ lz4-x64.dll" >> %ERRFILE%
-copy IA64\lz4.dll %OUTDIR%\lz4-x64.dll
-
-cd %ROOT%\Bundles\Codec_lz5
-nmake %OPTS%
-IF %errorlevel% NEQ 0 echo "Error ia64 @ lz5-x64.dll" >> %ERRFILE%
-copy IA64\lz5.dll %OUTDIR%\lz5-x64.dll
-
-cd %ROOT%\Bundles\Codec_zstd
-nmake %OPTS%
-IF %errorlevel% NEQ 0 echo "Error ia64 @ zstd-x64.dll" >> %ERRFILE%
-copy IA64\zstd.dll %OUTDIR%\zstd-x64.dll
-
-cd %ROOT%\Bundles\Codec_flzma2
-nmake %OPTS%
-IF %errorlevel% NEQ 0 echo "Error ia64 @ flzma2-x64.dll" >> %ERRFILE%
-copy IA64\flzma2.dll %OUTDIR%\flzma2-x64.dll
-
-cd %ROOT%\..\..\C\Util\7zipInstall
-nmake %OPTS%
-IF %errorlevel% NEQ 0 echo "Error ia64 @ Install-x64.exe" >> %ERRFILE%
-copy IA64\7zipInstall.exe %OUTDIR%\Install-x64.exe
-
-cd %ROOT%\..\..\C\Util\7zipUninstall
-nmake %OPTS%
-IF %errorlevel% NEQ 0 echo "Error ia64 @ Uninstall.exe" >> %ERRFILE%
-copy IA64\7zipUninstall.exe %OUTDIR%\Uninstall.exe
-
-set LFLAGS=/SUBSYSTEM:CONSOLE,"5.02"
-cd %ROOT%\UI\Console
-nmake %OPTS%
-IF %errorlevel% NEQ 0 echo "Error ia64 @ 7z.exe" >> %ERRFILE%
-copy IA64\7z.exe %OUTDIR%\7z.exe
-
-cd %ROOT%\Bundles\SFXCon
-nmake %OPTS%
-IF %errorlevel% NEQ 0 echo "Error ia64 @ 7zCon.sfx" >> %ERRFILE%
-copy IA64\7zCon.sfx %OUTDIR%\7zCon.sfx
-
-cd %ROOT%\Bundles\Alone
-nmake %OPTS%
-IF %errorlevel% NEQ 0 echo "Error ia64 @ 7za.exe" >> %ERRFILE%
-copy IA64\7za.exe %OUTDIR%\7za.exe
-
-:ende
-cd %ROOT%\..
diff --git a/CPP/build-x64.cmd b/CPP/build-x64.cmd
index 210da8cf..1b38a9f7 100644
--- a/CPP/build-x64.cmd
+++ b/CPP/build-x64.cmd
@@ -5,7 +5,7 @@ if not defined OUTDIR set OUTDIR=%ROOT%\bin64
 if not defined ERRFILE set ERRFILE=%cd%\error.txt
 mkdir %OUTDIR%
 
-set OPTS=CPU=X64 MY_STATIC_LINK=1 /NOLOGO
+set OPTS=PLATFORM=x64 MY_STATIC_LINK=1 /NOLOGO
 set LFLAGS=/SUBSYSTEM:WINDOWS,"5.02"
 
 cd %ROOT%\Bundles\Format7zExtract