The author deleted it , most likely had a bug he wants to fix .
Here is the removed version
http://www.mediafire.com/download/0mcsum3k4cmr6dq/DLC_Tool_hogehoge2015_開発版_2016-3-30-2.zip
Thank you Amaso!
But i have a problem
I clicked on load state and i opened my file, but i can't see my previous slots