这是一个完整注释的批处理代码，用于为文件夹图标创建或更新desktop.ini，还可以选择为当前驱动器根目录中的指定文件夹或所有文件夹（或删除/注释单行的当前目录）创建或更新文件夹类型。
创建desktop.ini非常简单，通过查看代码可以看出。cmd.exe仅使用并非为此类任务设计的 Windows 命令处理器的内部命令，更新现有的 INI 文件以替换行或在正确的部分中添加它们（如有必要）要困难得多。
@echo off
rem CreateDesktopIni.bat [FolderName | FolderType] [FolderType]
rem This batch file can be started without any parameter to create or
rem update desktop.ini for all subfolders in root of current drive or
rem current working directory with removing or commenting one line in
rem code below, see comment below label AllFolders.
rem But the batch file can be also started with a folder name
rem to create or update file desktop.ini of this folder only.
rem Optionally it is possible to specify as only parameter a folder type
rem or append as second parameter after folder name the folder type.
rem The folder type can be one of the following strings (not verified):
rem CommonDocuments, Contacts, Documents, Music, MusicAlbum, MusicArtist,
rem MusicIcons, MyDocuments, MyMusic, MyPictures, MyVideos, PhotoAlbum,
rem Pictures, UseLegacyHTT, VideoAlbum, Videos
setlocal EnableExtensions DisableDelayedExpansion
set "FolderType=%~2"
rem Define the subfolder containing the icon for the folder.
set "IconFolder=Icon"
rem Is the batch file called with at least one parameter?
if "%~1" == "" goto AllFolders
rem Yes! It could be a folder name or the folder type.
if not exist "%~1" set "FolderType=%~1" & goto AllFolders
rem First parameter specifies a folder (most likely as not verified).
set "Folder=%~1"
rem Remove trailing backslash if there is one.
rem The batch file should not be called with just \ as folder path.
if "%Folder:~-1%" == "\" set "Folder=%Folder:~0,-1%"
rem Call subroutine to create or update the desktop file for this folder.
call :DesktopINI "%Folder%"
goto EndBatch
:AllFolders
rem Change working directory to root of current drive. Remove or comment
rem the next line to process instead all subfolders in current directory.
cd \
rem Call subroutine to create/update the desktop file for each subfolder.
for /F "eol=| delims=" %%I in ('dir /AD /B 2^>nul') do call :DesktopINI "%%I"
goto EndBatch
rem Subroutine to create or update the desktop file for a folder.
rem This subroutine first searches for the icon file and does nothing
rem if no icon file could be found in the defined subfolder because
rem the subfolder does not exist at all or there is no *.ico file.
rem After determining the icon file (first found *.ico file) with full path
rem including drive letter (remove character d for relative path without
rem drive letter in line with %%~dpnxI), this subroutine checks next for
rem existence of file desktop.ini (case-insensitive) in current folder.
rem desktop.ini with the two or three lines is simply created if this file
rem does not already exist and the user of the batch file has permissions
rem to create this file in the current folder.
rem For an already existing desktop.ini the necessary process to update it
rem is much more complex. All lines outside the section [.ShellClassInfo]
rem must be kept and are therefore just copied to a temporary file, except
rem empty lines ignored by command FOR. Also all lines within the section
rem [.ShellClassInfo] not starting with the string IconFile= or optionally
rem FolderType= (both case-insensitive) must be also simply kept by copying
rem them to the temporary file.
rem An existing line starting with IconFile= in section [.ShellClassInfo]
rem is not copied to temporary file, but instead this line is written to
rem the temporary file with determined icon file name with path.
rem An existing line starting with FolderType= in section [.ShellClassInfo]
rem is also not copied to temporary file, but instead this line is written
rem to the temporary file with folder type as specified on starting batch.
rem If section [.ShellClassInfo] was found and beginning of a new section is
rem detected because of a line starting with an opening square bracket and
rem the line with IconFile= and/or the line with FolderType= was not found
rem in this section during processing the existing desktop.ini, the lines
rem are written next to temporary file to insert them before continuing
rem with the next section.
rem Finally it could happen that section [.ShellClassInfo] is missing in
rem existing desktop.ini and must be therefore added to the file. And it
rem could be that this section exists at end of desktop.ini, but either
rem the line with IconFile= or with FolderType= or both are missing and
rem those lines must be therefore appended to the file.
rem The temporary file is next copied over the existing desktop.ini and
rem then deleted as not further needed. Finally the system and hidden
rem attributes are set on file desktop.ini and the system attribute is
rem set on the current folder as otherwise desktop.ini would be ignored.
:DesktopINI
set "Folder=%~1"
for %%I in ("%Folder%\%IconFolder%\*.ico") do (
set "IconFile=%%~dpnxI"
goto IconFound
)
goto :EOF
:IconFound
set "DesktopFile=%Folder%\desktop.ini"
if not exist "%DesktopFile%" (
echo [.ShellClassInfo]>"%DesktopFile%"
if not exist "%DesktopFile%" goto :EOF
echo Iconfile=%IconFile%>>"%DesktopFile%"
if defined FolderType echo FolderType=%FolderType%>>"%DesktopFile%"
%SystemRoot%\System32\attrib.exe +h +s "%DesktopFile%"
%SystemRoot%\System32\attrib.exe +s "%Folder%"
goto :EOF
)
set "IconLine="
set "ShellClassInfo="
set "UpdateComplete="
set "TempFile=%TEMP%\Desktop.tmp"
if exist "%TempFile%" del /F "%TempFile%"
if not defined FolderType (set "TypeLine=1") else set "TypeLine="
%SystemRoot%\System32\attrib.exe -h -s "%DesktopFile%"
(for /F "usebackq delims=" %%L in ("%DesktopFile%") do (
set "LineOutput="
if defined ShellClassInfo (
for /F "delims==" %%V in ("%%L") do (
if /I "%%V" == "IconFile" (
echo Iconfile=%IconFile%
set "IconLine=1"
set "LineOutput=1"
) else if /I "%%V" == "FolderType" (
if defined FolderType (
echo FolderType=%FolderType%
set "TypeLine=1"
set "LineOutput=1"
)
) else (
set "NewSection=1"
for /F "eol=[" %%G in ("%%V") do set "NewSection="
if defined NewSection (
if not defined IconLine echo Iconfile=%IconFile%
if not defined TypeLine echo FolderType=%FolderType%
set "ShellClassInfo="
set "UpdateComplete=1"
)
)
)
) else if /I "%%L" == "[.ShellClassInfo]" (
echo [.ShellClassInfo]
set "ShellClassInfo=1"
set "LineOutput=1"
)
if not defined LineOutput echo(%%L
)) >"%TempFile%"
if not defined UpdateComplete if not defined ShellClassInfo (
echo [.ShellClassInfo]>>"%TempFile%"
set "ShellClassInfo=1"
)
if defined ShellClassInfo (
if not defined IconLine echo Iconfile=%IconFile%
if not defined TypeLine echo FolderType=%FolderType%
) >>"%TempFile%"
move /Y "%TempFile%" "%DesktopFile%" >nul
if exist "%TempFile%" del "%TempFile%"
%SystemRoot%\System32\attrib.exe +h +s "%DesktopFile%"
%SystemRoot%\System32\attrib.exe +s "%Folder%"
goto :EOF
:EndBatch
endlocal
建议删除所有以命令开头的行的注释，rem以便更快地处理批处理文件。
cd \如果批处理文件应在启动批处理文件时处理当前文件夹的所有子文件夹而不是当前驱动器的子文件夹，则必须删除或注释掉命令行。
可以附加DIR选项以在此批处理文件开始时处理当前文件夹或当前驱动器的整个目录树。/Sdir /AD /B
IconFolder可以定义环境变量，.而不是Icon在文件夹本身而不是子文件夹中搜索第一个 *.ico 文件Icon。
要了解使用的命令及其工作原理，请打开命令提示符窗口，在其中执行以下命令，并仔细阅读每个命令显示的所有帮助页面。
attrib /?call /?cd /?del /?dir /?echo /?endlocal /?for /?goto /?if /?move /?rem /?set /?setlocal /?
阅读有关使用命令重定向运算符的Microsoft 文章，了解>and>>和2>nul. 当 Windows 命令解释器在执行命令FOR之前在后台启动的单独命令进程中执行嵌入式命令行时，重定向运算符>必须^在FOR命令行上用脱字符号转义，2^>nul以便解释为文字字符。dir