右键添加：修改后缀

可以自己编辑.bat：增加 或者 减少文件类型
===========================

修改后缀（添加右键）.bat：

@echo off

::【删除原来菜单】
reg delete "HKCR\*\shell\修改后缀" /f >nul 2>nul
::=============================================================================================

::【主菜单：修改后缀】
reg add "HKCR\*\shell\修改后缀" /f /v "SubCommands" /t REG_SZ /d ""
reg add "HKCR\*\shell\修改后缀" /f /v "Icon" /t REG_EXPAND_SZ /d "C:\Windows\system32\user32.dll,6"
::=============================================================================================

::【次级菜单：ahk】
reg add "HKCR\*\shell\修改后缀\shell\ahk" /f /v "Icon" /t REG_EXPAND_SZ /d "C:\Windows\system32\user32.dll,4"
reg add "HKCR\*\shell\修改后缀\shell\ahk\command" /f /ve /t REG_SZ /d "cmd /c for /f \"delims=\" %%%%a in (\"%%1\") do rename \"%%%%a\" \"%%%%~na.ahk\""

::【次级菜单：bat】
reg add "HKCR\*\shell\修改后缀\shell\bat" /f /v "Icon" /t REG_EXPAND_SZ /d "C:\Windows\system32\user32.dll,4"
reg add "HKCR\*\shell\修改后缀\shell\bat\command" /f /ve /t REG_SZ /d "cmd /c for /f \"delims=\" %%%%a in (\"%%1\") do rename \"%%%%a\" \"%%%%~na.bat\""

::【次级菜单：reg】
reg add "HKCR\*\shell\修改后缀\shell\reg" /f /v "Icon" /t REG_EXPAND_SZ /d "C:\Windows\system32\user32.dll,4"
reg add "HKCR\*\shell\修改后缀\shell\reg\command" /f /ve /t REG_SZ /d "cmd /c for /f \"delims=\" %%%%a in (\"%%1\") do rename \"%%%%a\" \"%%%%~na.reg\""

::【次级菜单：txt】
reg add "HKCR\*\shell\修改后缀\shell\txt" /f /v "Icon" /t REG_EXPAND_SZ /d "C:\Windows\system32\user32.dll,4"
reg add "HKCR\*\shell\修改后缀\shell\txt\command" /f /ve /t REG_SZ /d "cmd /c for /f \"delims=\" %%%%a in (\"%%1\") do rename \"%%%%a\" \"%%%%~na.txt\""

::【次级菜单：vbs】
reg add "HKCR\*\shell\修改后缀\shell\vbs" /f /v "Icon" /t REG_EXPAND_SZ /d "C:\Windows\system32\user32.dll,4"
reg add "HKCR\*\shell\修改后缀\shell\vbs\command" /f /ve /t REG_SZ /d "cmd /c for /f \"delims=\" %%%%a in (\"%%1\") do rename \"%%%%a\" \"%%%%~na.vbs\""

::【次级菜单：wcs】
reg add "HKCR\*\shell\修改后缀\shell\wcs" /f /v "Icon" /t REG_EXPAND_SZ /d "C:\Windows\system32\user32.dll,4"
reg add "HKCR\*\shell\修改后缀\shell\wcs\command" /f /ve /t REG_SZ /d "cmd /c for /f \"delims=\" %%%%a in (\"%%1\") do rename \"%%%%a\" \"%%%%~na.wcs\""
exit
===========================================================
删除右键菜单.bat：
@echo off
reg delete "HKCR\*\shell\修改后缀" /f >nul 2>nul
exit

右键修改后缀.rar