python -c "import os;os.startfile('somepic.png', 'edit')"
如何在不使用额外工具（如python，powershell等）的情况下使用ShellExecuteEx命令？START命令似乎不能提供这个功能。
VBScript 自 Windows 98 起已经默认安装在每个桌面版 Microsoft Windows 上；1 在 Windows Server 自 Windows NT 4.0 Option Pack 起；[2] 并且在 Windows CE 上可选（取决于安装设备）。
示例脚本 shellexec.vbs ：
' shellexec.vbs : starts a file using a (non-default) shell verb like "EDIT"
' Usage: shellexec.vbs FILE VERB
' Example: shellexec.vbs demo.png EDIT
fn = WScript.Arguments(0)
cmd = WScript.Arguments(1)
Wscript.Echo "ShellExecute """ + cmd + """ on " + fn
CreateObject("shell.application").ShellExecute fn, "", "", cmd, 1
shellexec.vbs demo.png EDIT
或者：
cscript.exe //Nologo shellexec.vbs demo.png EDIT
一个示例，展示如何使用一行代码实现：
mshta vbscript:Execute("CreateObject(""shell.application"").ShellExecute""%SystemDrive%\autoexec.bat"","""","""",""edit"",1:close")
使用批处理代码可以实现与命令START相同的默认操作，打开关联应用程序的文件。
在下面的批处理代码中，必须在第三行指定shell动作，并将其分配给环境变量ActionCommand。
要编辑、打印等文件的名称必须作为批处理文件的第一个参数指定。
@echo off
setlocal EnableExtensions EnableDelayedExpansion
set "ActionCommand=edit"
rem Check if batch file was started with name of an existing file.
if "%~1" == "" set "ErrMsg=No file name specified as argument on starting %~nx0" & goto OutputError
if exist "%~1\" set "ErrMsg="%~f1" is a directory and not a file" & goto OutputError
if not exist "%~f1" set "ErrMsg=A file "%~f1" does not exist" & goto OutputError
rem Check if specified file has a file extension. Files starting with . and
rem not containing at least a second . are also files with no file extension.
if "%~n1" == "" set "ErrMsg=File "%~f1" has no file extension" & goto OutputError
if "%~x1" == "" set "ErrMsg=File "%~f1" has no file extension" & goto OutputError
rem On Windows Vista and later REG.EXE outputs without version info for example:
rem HKEY_CLASSES_ROOT\.txt
rem (Default) REG_SZ txtfile
rem There are only spaces used to separate value name, value type and value string.
rem But REG.EXE version 3.0 outputs on Windows XP with version info for example:
rem ! REG.EXE VERSION 3.0
rem
rem HKEY_CLASSES_ROOT\.txt
rem <NO NAME> REG_SZ txtfile
rem NOTE: There are 4 indent spaces and 2 separating tabs in REG 3.0 output line.
rem So either token 2 or token 3 contains value type REG_SZ
rem used to identify the line with the wanted information.
set "TypeToken=2"
rem Get name of registry key associated with extension of specified file.
:GetAssociatedKey
for /F "skip=1 tokens=%TypeToken%*" %%A in ('%SystemRoot%\System32\reg.exe query "HKCR\%~x1" /ve 2^>nul') do (
if "%%A" == "REG_SZ" set "KeyName=%%B" & goto GetCommand
if "%%A" == "NAME>" set "TypeToken=3" & goto GetAssociatedKey
)
set "ErrMsg=No file assocation found for %~x1 in registry" & goto OutputError
:GetCommand
for /F "skip=1 tokens=%TypeToken%*" %%A in ('%SystemRoot%\System32\reg.exe query "HKCR\!KeyName!\shell\%ActionCommand%\command" /ve 2^>nul') do (
if "%%A" == "REG_SZ" set "ActionCommand=%%B" & goto PrepareCommand
if "%%A" == "REG_EXPAND_SZ" set "ActionCommand=%%B" & goto PrepareCommand
)
set "ErrMsg=No edit command found for %~x1 in registry" & goto OutputError
rem Replace "%1" or %1 by full name of specified file in double quotes or
rem append a space and full name of specified file if the command string
rem does not contain "%1" or %1 at all. Then expand the command string.
:PrepareCommand
set "ActionCommand=!ActionCommand:"%%1"="%~f1"!"
set "ActionCommand=!ActionCommand:%%1="%~f1"!"
if "!ActionCommand:%~f1=!" == "!ActionCommand!" set "ActionCommand=!ActionCommand! "%~f1""
call set "ActionCommand=%ActionCommand%"
rem Run the command with current directory set for the application to folder
rem of specified file without checking if the executable file exists at all.
rem Command start displays an error message box which must be confirmed by
rem the user by a click on button OK and outputs the error message also to
rem console if the executable to start could not be found.
start "" /D"%~dp1" %ActionCommand%
endlocal
goto :EOF
:OutputError
echo %~f0
echo.
echo Error: !ErrMsg!.
echo.
echo Press any key to exit batch processing ...
endlocal
pause >nul
这个批处理文件可能不适用于所有可能的操作命令，但它应该适用于99.5%的edit，printto等命令。
为了理解使用的命令及其工作原理，请打开一个命令提示符窗口，在其中执行以下命令，并非常仔细地阅读每个命令显示的所有帮助页面。
call /?echo /?endlocal /?for /?goto /?if /?pause /?reg query /?rem /?set /?setlocal /?start /?不确定这是否是您要寻找的内容，但使用START命令可以在默认程序中打开我想编辑的文件。
START "" "Mypdf.pdf"
START "" "Myfile.txt"
START "" "Myjpg.jpg"
ETCETERA ETCETERA........