1======================== 2ReactOS™ Version 0.4.x 3Updated August 31, 2016 4======================== 5 61. What is ReactOS? 7------------------- 8 9ReactOS™ is an Open Source effort to develop a quality operating system that is 10compatible with applications and drivers written for the Microsoft® Windows™ NT 11family of operating systems (NT4, 2000, XP, 2003, Vista, Seven). 12 13More information is available at: https://www.reactos.org 14 15 162. Relationship with the WINE project 17------------------------------------- 18 19ReactOS has always intended to work with the WINE project to share as much 20programming effort as possible. This mainly concerns User Mode DLLs and 21still happens to a degree today. Other areas of cooperation lie in 22applications and testing suites. 23 24 253. Future compatibility 26----------------------- 27 28The ReactOS project, although currently focused on Windows Server 2003 29compatibility, is always keeping an eye toward compatibility with 30Windows Vista and future Windows NT releases. 31 32 334. Supporting other System Applications 34--------------------------------------- 35 36The Windows NT architecture allows for subsystems, as does the ReactOS 37architecture. A subsystem is an implementation of the APIs of another 38operating system, allowing ReactOS to run applications from other systems. 39We are already looking at subsystems for: Java, OS/2, and DOS and possibly 40others in the future. 41 42 435. Is ReactOS legal? 44-------------------- 45 46Yes we are. 47All the code of ReactOS has been written from scratch by our developers. 48We go to great lengths to ensure that the code our developers create is clean, 49same applies to the variety of methods we use to understand Windows internals, 50including clean room reverse engineering, using existing documentation freely 51available both in books and on the web, using extensive tests (tens of millions) 52which apply black box engineering methods against both public and private APIs 53exposed by the operating system. 54 55 566. Tutorials 57------------ 58 59Developer and User Tutorials: https://www.reactos.org/wiki 60 61The tutorials contain more information on the project, compiling and testing 62ReactOS - amongst other topics. Contributors to the project are always welcome. 63 64 657. Frequently Asked Questions 66----------------------------- 67 68Some of your questions may be answered in: https://www.reactos.org/joining/faqs 69In addition, the ReactOS forum: https://www.reactos.org/forum/ may contain 70complementary, yet non-official, information. 71 72 738. Authors 74---------- 75 76This document was originally written by Jason Filby (jasonfilby@yahoo.com) 77and is now occasionally updated by various contributors. 78