Recently I upgraded my MacBook Pro to OS X Mountain Lion. Remote Desktop Connection Client for Mac is a Microsoft tool which allows you to connect your Mac to PC Windows machines and other devices.
Microsoft RDP for Mac is now called Microsoft Remote Desktop Connection Client for Mac (confusingly also known as RDC for Mac or Remote Desktop for Mac). You might have a Linux machine tossed in there to serve files, but most people have Windows or Macs, and sometimes both. If you run a mixed network, it’s most likely a combination of Macs and Windows PCs. 'Provide remote assistance to Windows, Mac and Linux users, or access your Windows (XP and above) and Mac (OS X 10.6 and above) desktops at any time, all from the Chrome browser on virtually any device, including Chromebooks.' jeroen via: osx - How to print screen in Remote Desktop Client (RDS) on Mac OS X? - Super User. Just run OSK to start the On-Screen Keyboard. It even works with Alt-Prt+Sc to make screenshots of individual Windows. The only reliable way to create a remote print-screen is by using the Windows On-Screen Keyboard. OS X and Windows have this ability built right into them, meaning you can easily share your Mac’s screen with Windows PCs, and vice versa. Sharing your screen remotely is a convenient way to access another computer as if you’re sitting in front of it.