Ever Wanted to have many yahoo accounts opened at same time. I had a problem while using it on my PC. As you all know I and my Big brother Jed keep searching for nice topics, so we both tend to be online. And always having both account active was big problem, until I discovered Yahoo Multi patcher which enables you to have simultaneous max 10 login per computer. So I decided to go for it. It's simple registry and so no need to download heavy patcher for that.Just try following two registry files to enable or disable Yahoo-multipatcher.