While I’m still a big fan of the Codeplex Terminals "tabbed remote desktop" application — here’s a more "offical" solution from Microsoft.
Remote Desktop Connection Manager (RDCMan) manages multiple remote desktop connections. It is useful for managing server labs where you need regular access to each machine such as automated checkin systems and data centers. It is similar to the built-in MMC Remote Desktops snap-in, but more flexible.Download –> Remote Desktop Connection Manager
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