Perl script inside a DOS Batch file

Whenever I wanted to invoke a utility passing a file as an argument I used to create a shortcut of the utility in the Send To folder, as described here :

How to Add Items to the "Send To" Menu

But how to have a Perl script in the "Send To" menu??

I got an idea when browsing through this page :

DOS Batch - Interfacing non DOS Software

I created a batch script as described in the page. Then modified the part of the batch file where the Perl script actually starts.

I wanted to have a utility that can encrypt/decrypt a text file. A basic encryption was sufficient, so considered the Caesar cipher.

I completed the script and added it to the Send To menu.
Link to the script

A small modification to the above script to handle binary files. Here is the link.