@ echo off
echo **************************************************************************
echo THIS BATCH FILE USES PKUNZIP.EXE TO DECRYPT A USER PROVIDED (LOW LEVEL) 
echo ENCRYPTED ARCHIVE FILE IN THE *.ZIP FILE FORMAT AND TO EXTRACT FROM
echo THAT *.ZIP ARCHIVE ALL OF THE ARCHIVED FILES.  (PKUNZIP.EXE MUST BE IN 
echo THE DOS PATH.) THE USER MUST SUPPLY 2 COMMAND LINE ARGUMENTS WHEN 
echo EXECUTING THIS BATCH FILE AT THE DOS COMMAND LINE: zipfilename password  .
echo **************************************************************************
echo "zipfilename" is the DOS filename for the User provided (low level)
echo encypted *.ZIP archive file without the ".ZIP" extension which is assumed.
echo The User provided *.ZIP file for decryption and file extraction should be
echo in the current subdirectory or a full DOS path to the file is required.  
echo Files will be extracted into the current subdirectory.
echo "password" is the identical sequence of permitted DOS filename symbols 
echo which was used as the "password" symbol sequence when the low level
echo encrypted *.ZIP archive file was created. 
echo **************************************************************************
pkunzip -s%2 %1