How to create a.bat file to unzip multiple .7Z files?

I try to create a .bat file to extract (unzip) multiple .7Z files, each to separate folder, with foldeame = .7z (foldeame is the same as the .7Z filename).

The .bat file provided here does not work. I have included it below - perhaps there is a req'd modification I'm not seeing. I simply get no response when the .bat file is run. (.bat file -not working - shown below):

@echo off<br/>
:top<br/>
if "%1"=="" goto :EOF<br/>
7z.exe x "%1" -o"%~dpn1"<br/>
shift<br/>
goto top<br/>

NOTE: I intend to use the .bat file in Classic Shell (Ivosoft) to create a custom toolbar button that will unzip the selected (multiple) files to separate folders.