MKS X/Server

MKS X/Server, a commercial X server developed by MKS Inc., allows users to access Unix/Linux systems from a PC computers which run a Microsoft Windows operating system. The product offers both a full 32-bit X server and a native 64-bit X server (for x64 based systems) that operate on various versions of Microsoft Windows.
History.
Since 1995 MKS has distributed the SCO/Tarantella XVision Eclipse PC X server product to its customer base as part of its MKS Toolkit product line. In 2006 MKS acquired the source code rights XVision giving the company the ability to maintain and enhance the product as needed by the market and its customers. 
MKS X/Server is available as a standalone product, bundled with various versions of the MKS Toolkit product and available as a runtime option to UNIX/Linux applications ported to Windows using the MKS Toolkit for Enterprise Developers application.