I’ve been using WinAuth on my Desktop for some time now to help manage my battle.net authenticator. It is a great open source tool which mimics the behavior of the bnet authenticator mobile app but remains confined to your computer. Once you are required to provide an authenticator code to your battle.net account, simply open WinAuth, right click and select copy code. Then paste the code into the appropriate form field where it is required. Over time WinAuth has grown to now incorporate many other common online authenticators. Including other games and more will likely be added in the future. I encourage all my friends and family members to secure their accounts with an authenticator and this software provide a free and easy way to accomplish it.