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Large Scale System Administration of Windows NT Workshop, 1997

UWIN-UNIX for Windows

David G. Korn
AT&T Laboratories
Florham Park, N.J.


This paper describes an effort of trying to build a UNIX interface layer on top of the Windows NT [1] and Windows 95 [2] operating system. The goal was to build an open environment rich enough to be both a good development environment and a suitable execution environment.

The result of this effort is a set of libraries, headers, and utilities that we collectively refer to as UWIN. UWIN contains nearly all the X/Open Release 4 [3] headers, interfaces, and commands. An earlier paper on porting to Windows NT [4], describes alternative porting strategies and presents some performance results for UWIN. In this paper we discuss some of the design decisions behind UWIN and some of the results so far as well as some of the remaining challenges.

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