MS Dos Cmd - Rename - adding a leading character to filename
<p>Having trouble getting the correct MSDOS command format. 
We need to add a leading zero to a batch of files in a directory on a regular basis. I cannot download and install a software item to do so.  The operating system is Windows-7. The length of the filenames varies.
i.e.</p>

<blockquote>
  <p>000165-CityName1.pdf to 0000165-CityName1.pdf<br>
  000166-CityNameLonger2.pdf to 0000166-CityNameLonger2.pdf<br>
  etc.</p>
</blockquote>

<p>Looking for a rename command that would work, can someone please suggest one, it would be appreciated.  I have tried a half dozen without success.<br>
Thank you<br>
Russ</p>

<p><img src="https://i.stack.imgur.com/vTB1D.png" alt="enter image description here"></p>