Calista Technologies was a company that provided virtual device solutions for Windows

Microsoft Windows

Microsoft Windows is a series of operating systems produced by Microsoft.Microsoft introduced an operating environment named Windows on November 20, 1985 as an add-on to MS-DOS in response to the growing interest in graphical user interfaces . Microsoft Windows came to dominate the world's personal...

. The general premise behind the technology was to provide an abstract virtual view of a hosting machine's devices from within a virtual machine through drivers for Windows Vista and Windows XP and present the user interaction to thin clients through RDP

Remote Desktop Protocol

Remote Desktop Protocol is a proprietary protocol developed by Microsoft, which provides a user with a graphical interface to another computer. The protocol is an extension of the ITU-T T.128 application sharing protocol. Clients exist for most versions of Microsoft Windows , Linux, Unix, Mac OS...

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The company had 35 employees at its peak, including a hardware team which created an accelerated frame buffer capture and compression technology.

Calista Technologies was acquired by Microsoft

Microsoft

Microsoft Corporation is an American public multinational corporation headquartered in Redmond, Washington, USA that develops, manufactures, licenses, and supports a wide range of products and services predominantly related to computing through its various product divisions...

in January 2008 for more than $100 million in stock.