CodeWeavers, which sells Windows-emulation software for the Linux platform, has launched a server version of its CrossOver Office that runs with Tarantella's Enterprise 3 server software. The combination allows administrators to set up a Linux server running applications such as Word and Outlook, which can be made accessible to large numbers of Linux or Unix users without needing any special client software.  Microsoft applications are not directly available on Linux because the operating system is a direct competitor to Windows. However, developers such as CodeWeavers have found ways of getting around this blockade in order to make desktop Linux installations more attractive to businesses.  Other solutions exist for letting Linux clients run Microsoft Office from a server, but CodeWeavers claims that its system is much cheaper. Microsoft sells a version of Windows, called Terminal Server, that can serve applications over a network, and Citrix's software offers similar features, but both are relatively expensive.