CODEWITHSUNDEEP
windowsbatch-filecommandregistrycontextmenu
Jesús Cruz
Jesús Cruz

Reputation: 192

(Windows 8.1) Get path of selected folder from custom context menu option

First of all, I have almost no idea about batch language. I'm working on a batch file that writes to the registry in order to add a context menu option that removes "desktop.ini" from the folder from where the context menu option is called. So far, what I got is:

@echo off

@reg add "HKEY_CLASSES_ROOT\Folder\shell\resetFolderSettings"         /t REG_SZ /v "" /d "Reset folder settings"   /f
rem @reg add "HKEY_CLASSES_ROOT\Folder\shell\resetFolderSettings\command" /t REG_SZ /v "" /d "del /A s h \"%cd%\desktop.ini\" && pause" /f
@reg add "HKEY_CLASSES_ROOT\Folder\shell\resetFolderSettings\command" /t REG_SZ /v "" /d "cmd.exe /c echo \"%~dp0\desktop.ini\" && pause" /f

pause

Which doesn't work because what gets written into the registry is the static folder path from where the installation .bat is called. I'm having quite some trouble finding a solution to this problem so I finally decided I had no choice but to ask for help here.

Upvotes: 0

Views: 270

Answers (1)

JosefZ
JosefZ

Reputation: 30113

Use %V to denote the folder from where the context menu option is called.

Hence, the parameters you should use in 

reg add "HKCR\Folder\shell\resetFolderSettings\command" ...

could be from a batch script (see that %V should be escaped as %%V):

 ... /t REG_SZ /v "" /d "%comspec% /c echo \"%%V\desktop.ini\"&&pause" /F

or directly from cmd window - % sign is not escaped here:

 ... /t REG_SZ /v "" /d "%comspec% /c echo \"%V\desktop.ini\"&&pause" /F

Edit. To make %comspec% expandable as well (and with operational del /A command instead of echo):

 ... /t REG_EXPAND_SZ /ve /d ^%comspec^%" /c del /A \"%V\desktop.ini\"&pause" /F

used directly from cmd window. See escaped % as ^% (however only those out of double-quoted part of command line) above.

Use another escaping scheme from a batch-script: escape all % as %% how seen in both %%comspec%% and %%V as follows:

 ... /t REG_EXPAND_SZ /ve /d "%%comspec%% /c del /A \"%%V\desktop.ini\"&pause" /F

Result:

==> reg query "HKCR\Folder\shell\resetFolderSettings\command" /ve

HKEY_CLASSES_ROOT\Folder\shell\resetFolderSettings\command
    (Default)    REG_EXPAND_SZ    %comspec% /c del /A "%V\desktop.ini"&pause

Upvotes: 2

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