Amazon S3™ and S3Express support Unicode and all alphabets in the world. In order to properly show all Unicode characters in Windows, you'll need to set the Windows console font to 'Lucida Console', as shown below. This only has to be done once.

Step 1: Select 'Properties' from the console menu.
 

 
Step 2: Select the 'Lucida Console' font from the 'Font' tab.