BofA launched its Windows 7 app in May, enabling customers to pay bills, transfer funds, view balances and find ATMs using their handsets.

It's now created a Microsoft Tag, a 2D barcode that users scan to get redirected to a page where they can download the banking app.

On the Microsoft Tag blog, Treena Colby says: "You are a gal or guy on the go. You have a stack of bills a mile high. You have no time to organize your life, much less read your mail or navigate a website to get what you need. You are the perfect target audience for the latest Bank of America marketing campaign."