I was able to mine Dogecoins using nvidia geforce 8800gt at 12 KH/S using this tutorial
http://www.reddit.com/r/dogecoin/comments/1sj337/how_to_mine_dogecoin_with_a_nvidia_gpu/
but I forgot my password and my account got locked there, and I can not not access my 200 coins I was able to mine
Now even If i try to close the .bat file, a window pops up saying that the program stopped responding