title: How to write a batch file that can unzip a file into a new folder with the same name?
body: <p>I need to write a batch script that will allow me to unzip a .zip file into a new folder that has the same name as the zip file. I cannot assume that I have some program to unzip the file; it has to work as if the computer is brand new.</p>
  
  <p>For example, if I have a group of zip files named a1, b2, c3, and d4, I want their contents to go into 4 different folders labeled a1, b2, c3, d4. It doesn't need to be concise, it just has to work. </p>