If I try to use it twice or more (using cmd /c command "%SANDBOX%" && another command "%SANDBOX%"), then it fails and the error prompt adds an ID to the folder ("e.g. Delete command failed: "first command. c:\sandbox\_Delete_TempBox_3423dfsafjdksl && second command c:\sandbox\_Delete_TempBox_3423dfsafjdksl").

It's not, I repeat - not, because of the "&&" because the same command runs fine if it looks like:
cmd /c command "%SANDBOX%" && another command "c:\sandbox\TempBox"
(that is, the second time I need "%SANDBOX%" I write it manually).

Your quote shows the %SANDBOX% was replaced twice correctly. That's the end of the story as far as I'm concerned. The DeleteCommand isn't a command processor, it just runs one program. So the program you're running is cmd.exe and you pass &&s and you see that cmd.exe isn't handling the &&s correctly. Ok, but why are you complaining here, implying that DeleteCommand is broken? Just use a batch file and move on.

Using "&&" was just an example. Problems occur whenever you use the word "%SANDBOX%" more than once (e.g. "%ComSpec%" /c copy "%SANDBOX%\RegHive" "%SANDBOX%\foobar.txt".

Hmm, I think I understand now. Sandboxie renames the sandbox before launching the "Delete Command". Therefore, "%SANDBOX%" actually stands for the renamed (temporary) name and not the original name. So basically what I would have wanted is:
"%ComSpec%" /c copy "%SANDBOX%\RegHive" "%ORIGINAL_NAME_OF_SANDBOX%\foobar.txt".
Alas, there's no such thing as "%ORIGINAL_NAME_OF_SANDBOX%".

One more thing to take into account is that you get the "Delete Command failed: xxxxx" message box if the command launched returns a non-zero return code. I'm not adding %ORIGINAL_NAME_OF_SANDBOX%; I'm not even sure that I agree with your use of DeleteCommand to populate the sandbox.

Again I say: Use a batch file. Here is an exercise for you to try in a command prompt window:



See, you can manufacture your own %ORIGINAL_NAME_OF_SANDBOX% without my help.

(If you're going to put that in a batch file, you may need to change the %A's into %%A's. I think I remember something about batch files requirement for two percent marks there.)

That's because I haven't found an external equivalent for "Auto Exec"
(that could run CMD in order to duplicate sandboxes).

Anyway, your commands work for "__Delete_DefaultBox_01C87E1832BF7182" but not for what what Sandbox actually is: "c:\sandbox\%username%\__Delete_DefaultBox_01C87E1832BF7182" - do you know how to make it work then? Thanks.

Come on now ... I was only making the point that you can take the %SANDBOX% and parse it anyway you want, and you don't need me to make changes to Sandboxie for that. I didn't mean that I was going to do it for you.

Nevertheless I'm going to assume that this is the last question on this issue, so I will extend my example:



%BOXNAME% will be DefaultBox.

Okay, there's no more need for you to reply to this topic anymore, but I've just discovered tokens=3 does the job too.

So I've updated the duplicating sandboxes' topic accordingly.