rsrdp is an open source application that works on Windows XP, Windows Vista and Windows 7. A portable remote desktop connection management application, which enables you to establish multiple remote desktop connections by switching between them within the same application window.
Establish Multiple Remote Desktop Connections In the Same Window
To establish a remote desktop connection, Click on File >> Quick Connect, and enter the hostname / IP address for the PC that you want to connect to. You can enter multiple connections for connecting to remote computers, create groups to organize the list of remote hosts. You can also connect or disconnect all specified hosts simultaneously, using the option in the menu.
Click the sidebar to see the remote window in an expanded format.You can also close and refresh connections by using the Refresh and Close (x) buttons located next to the File menu.