Image File - Multiple Copy, Paste and Rename

Question

Hi all..

 

My requirement is -

1. I have an image file (b-600.png) .

 

2. I have to make multiple copies of this same image (simply copy and paste) - more than 10,000 times.

 

3. After that, I have to rename all the files... 

 

Names - b-10000,  b-10001, b-10002, ... etc

 

How to make this thing possible in windows ?? OR Is there a way to make a asp.net program for it ??

 

Also... I do not have any permission to use any other software for this.... 

 

Please guide....