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ReactOS

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ReactOS
ReactOS logo.svg
ReactOS 0.4.7 with Lautus Theme.png
ReactOS 0.4.7 Desktop
Developer ReactOS Contributors
Written in C, C++[1]
OS family Windows-like (aims to be a drop-in replacement of Windows in nearly all cases but is not Windows)
Working state Alpha
Source model Open source[2]
Initial release 1998; 21 years ago (1998)
Latest preview 0.4.11 alpha[3][4] / March 4, 2019; 6 months ago (2019-03-04)[5]
Repository
  • github.com/reactos/reactos
Marketing target A free replacement for Microsoft Windows
Update method CD-ROM ISO image, QEMU image, VirtualBox image, VMware image, or source code[6]
Platforms amd64, i686, ARM
Kernel type Hybrid (designed to be compatible with Windows NT family)
Default user interface Graphical (ReactOS Explorer)
License GPLv2+ with parts under LGPL and BSD licenses
Official website www.reactos.org
ReactOS 0.3 running the Firefox Web browser
ReactOS 0.3.1 desktop: left Start Menu and right ReactOS's own File Explorer
New shell in ReactOS (v0.4.0 and newer)

ReactOS is a free and open-source operating system for amd64/i686 personal computers intended to be binary-compatible with computer programs and device drivers made for Windows Server 2003 and later versions.[7][8] ReactOS has been noted as a potential open-source drop-in replacement for Windows[9][10][11] and for its information on undocumented Windows APIs.[12]

ReactOS has been in development since 1996. As of September 2019 it is still considered alpha software, feature-incomplete, but with many Windows applications already working, e.g., Adobe Reader 6.0, OpenOffice,[13][14] and is, therefore, recommended by the developers only for evaluation and testing purposes.[15][16]

ReactOS is primarily written in C, with some elements, such as ReactOS File Explorer, written in C++. The project partially implements Windows API functionality and has been ported to the AMD64 processor architecture.[17] ReactOS, as part of the FOSS ecosystem, re-uses and collaborates with many other FOSS projects,[18][19] most notably the Wine project, which presents a Windows compatibility layer for Unix-like operating systems.

History

Mission

As formerly stated on the official Web site,

Early development

Around 1996, a group of free and open-source software developers started a project called FreeWin95 to implement a clone of Windows 95. The project stalled in discussions of the design of the system.

While FreeWin95 had started out with high expectations, there still had not been any builds released to the public by the end of 1997. As a result, the project members, led by coordinator Jason Filby, joined together to revive the project. The revived project sought to duplicate the functionality of Windows NT.[21] In creating the new project, a new name, ReactOS, was chosen. The project began development in February 1998 by creating the basis for a new NT kernel and basic drivers.[22] The name ReactOS was coined during an IRC chat. While the term "OS" stood for operating system, the term "react" referred to the group's dissatisfaction with — and reaction to — Microsoft's monopolistic position.[10]

In 2002 the ReactOS Foundation was established in Moscow with Maxim Osowski and Aleksey Bragin as executive officers and Vladimir Bragin, Saveliy Tretiakov and Alexey Ivanov in board of directors.[23] In 2015, the foundation was liquidated.[24]

Ekush OS fork

In 2004, a copyright/license violation of ReactOS GPL code (and other FOSS code) was found when someone distributed a ReactOS fork under the name Ekush OS.[25][26] The Web page later disappeared.[27]

Internal audit

In order to avoid copyright prosecution, ReactOS had to be expressly completely distinct and non-derivative from Windows, a goal that needed very careful work.[28] A claim was made on 17 January 2006, by now former developer Hartmut Birr on the ReactOS developers mailing list (ros-dev) that ReactOS contained code derived from disassembling Microsoft Windows.[29] The code that Birr disputed involved the function BadStack in syscall.S,[30] as well as other unspecified items.[31] Comparing this function to disassembled binaries from Windows XP, Birr argued that the BadStack function was simply copy-pasted from Windows XP, given that they were identical. Alex Ionescu, the author of the code, asserted that while the Windows XP binary in question was indeed disassembled and studied, the code was not merely copy-pasted, but reimplemented; the reason why the functions were identical, Ionescu claimed, was because there was only one possible way to implement the function.[32]

On 27 January 2006, the developers responsible for maintaining the ReactOS code repository disabled access after a meeting was held to discuss the allegations. When approached by NewsForge, Microsoft declined to comment on the incident. Since ReactOS is a free and open-source software development project, the claim triggered a negative reaction by the free software community; in particular, Wine barred several inactive developers from providing contributions[citation needed] and formal high level cooperation between the two projects remained difficult as of 2006.[33] Contributions from several active ReactOS developers have been accepted post-audit, and low level cooperation for bug fixes has been still occurring.

In a statement on its Web site, ReactOS cited differing legal definitions of what constitutes clean-room reverse engineering as a cause for the conflict.[34] Some countries, including the United States, require that a reimplementation based on disassembled code must be written by someone other than the person having disassembled and examined the original code,[35][36] whereas other countries allow both tasks to be performed by the same individual. Consequently, ReactOS clarified that its Intellectual Property Policy Statement requirements on clean room reverse engineering conform to United States law. An internal source code audit was conducted to ensure that only clean room reverse engineering was used, and all developers were made to sign an agreement committing them to comply with the project's policies on reverse engineering.[33] Contributors to its development were not affected by these events, and all access to the software development tools was restored shortly afterward. In September 2007, with the audit nearing completion, the audit status was removed from the ReactOS homepage. Though the audit was completed, specific details were not made public, as it was only an internal effort to ensure compliance with the project's own policies.[37]

Much of the assembly code that was allegedly copied has also been replaced as a natural progression in ReactOS development, by the developers having reimplemented the functionality in C for portability reasons.[citation needed]

Also, the 2004 leaked Windows source code[38] was not seen as legal risk for ReactOS, as the trade secret was considered indefensible in court due to broad spread.[39]

Google Summer of Code participation

Starting in 2006[40] the ReactOS project participated in several Google Summers of Code. For example, in the GSoC 2011[41] ReactOS mentored a student project which integrated lwIP into the network stack.[42] ReactOS has to date participated five times in GSoC: 2006, 2011, 2016, 2017 and 2018.

Currently the ReactOS project is looking for students for participation in GSoC 2019.[43][44]

Lobbying for support in Russia

Between 2007 and 2015, Russian ReactOS contributors representing the ReactOS Foundation made efforts at lobbying the Russian federal government. As of April 2019, these efforts have not yielded government support to ReactOS, and the Russia-based ReactOS Foundation has been dissolved since November 2015.[24]

Former ReactOS project coordinator Aleksey Bragin (left) showing ReactOS to Viktor Alksnis
The Prime Minister of Russia Dmitry Medvedev (left) being given a demonstration of ReactOS
  • In 2007, then State Duma member and nationalist hardliner Viktor Alksnis met with project coordinator Aleksey Bragin, who gave a presentation and demonstration of the project, showing ReactOS running with Total Commander and Mozilla Firefox.[45]
  • In 2011 a demonstration was given to then president Dmitry Medvedev during a visit to a high school in Verhnerusskoe, Stavropol, attended by one of the development team members.[46]
  • On 31 July 2012, Vladimir Putin was also given a demonstration during his visit as President of Russia to Seliger Youth Forum, attended by Marat Karatov, one of the development team members.[47]
  • On 1 April 2015, Bragin attended an expert meeting of the Russian Ministry of Communications on reducing Russia's dependency from proprietary software imports. Its minutes name the "creation of an open source operating system based on ReactOS for PCs, laptops and other mobile devices", as well as the "creation an open source operating system for servers based on ReactOS",[48][49][50][51] placing it second among three named proposals.

Funding campaigns

On 1 May 2012 a 30,000 euro funding campaign was started to finance additional development projects.[52][53] On the end of the year approximately 50% of the funding goal was achieved and it was decided to continue the funding campaign without deadlines.[54] The money went to ReactOS Deutschland e. V.. As the tax law in Germany for this form of a registered voluntary association (Eingetragener Verein) makes it problematic to pay developers directly,[55] indirect possibilities like stipends were evaluated.

Thorium Core Cloud Desktop project

When ReactOS was awarded as Project of the Month on SourceForge on June 2013, a crowdfunding campaign on Kickstarter was announced in an interview with the project's coordinator, Aleksey Bragin.[56] On 23 December 2013 the announced project was revealed as a Kickstarter campaign with the goal of US$120,000 was started.[57][58] The Thorium Core Cloud Desktop dubbed cloud computing service would use ReactOS as core and could allow the use of Windows compatible applications from mobile devices (like smartphones, tablets), workstations, or any other connected device. On 21 February 2014, fundraising ended short of the target amount, with $48,965 of $120,000 raised, resulting in no transferred money.[59]

ReactOS Community Edition

In April 2014, the ReactOS project announced an Indiegogo campaign to launch ReactOS Community Edition, a version of ReactOS based on the 0.4 release. The flexible funding campaign had a goal of US$50,000 with additional stretch goals beyond that.[60] Development of ReactOS Community Edition would be community-centric, with ReactOS users voting and funding to decide which software and hardware drivers the project will aim to support.[61][62] On 1 June 2014, the flexible crowdfunding campaign on Indiegogo was finished with raising $25,141 for the development of the community edition,[63][64] and the voting process to support hardware and software was started shortly after.[65]

ReactOS Hackfest

First video of printing from ReactOS

The ReactOS project organized a hackfest from 7 to 12 August 2015, in the German city of Aachen.[66][67][68] The Hackfest was declared a success[according to whom?], as it added many features to ReactOS.

The second hackfest was organized by the ReactOS project from 14 to 18 August 2017, in the German city of Cologne.[69]

The third hackfest was organized by the ReactOS project from 16 to 21 August 2018 in Berlin.[70]

Release history

System version Release date Release information
Old version, no longer supported: 0.2.0 2004-01-25 First release with working GUI
Old version, no longer supported: 0.2.1 2004-03-03 Bug fixes only
Old version, no longer supported: 0.2.2 2004-04-27 Bug fixes only
Old version, no longer supported: 0.2.3 2004-06-26 New LiveCD image, improved stability in the kernel and win32k, networking improvements and improved shell, command prompt and hardware drivers
Old version, no longer supported: 0.2.4 2004-09-13 Code synced with Wine, compiler fixes and cleaned up file headers
Old version, no longer supported: 0.2.5 2005-01-02 Imported Notepad from WINE, added Date/Time application
Old version, no longer supported: 0.2.6 2005-04-09 NVIDIA OpenGL hardware acceleration works, NCITool created for generating system call database files
Old version, no longer supported: 0.2.7 2005-08-21 New Command Prompt, My Computer and ReactOS logo icons, improved first-stage installer appearance
Old version, no longer supported: 0.2.8 2005-10-29 VMware detection, CSRSS rewrite
Old version, no longer supported: 0.2.9 2005-12-22 Bug fixes only
Old version, no longer supported: 0.3.0 2006-08-27 First version to officially support networking
Old version, no longer supported: 0.3.1 2007-03-10 Program manager included, start of kernel rewrite
Old version, no longer supported: 0.3.2 skipped Branch created but never released
Old version, no longer supported: 0.3.3 2007-09-12 Kernel and win32k improvements
Old version, no longer supported: 0.3.4 2008-01-22 Registry support rewrite, remote desktop client and Plug and Play
Old version, no longer supported: 0.3.5 2008-06-30 Bug fixes only
Old version, no longer supported: 0.3.6 2008-08-06 RTL support
Old version, no longer supported: 0.3.7 2008-11-04 Improved x86-64; MSVC, new stacks
Old version, no longer supported: 0.3.8 2009-02-04 Introduced PSEH and multi-partition HDD support in LiveCD
Old version, no longer supported: 0.3.9 2009-04-26 24 MB minimum RAM, faster hyperspace mapping, initial sound support
Old version, no longer supported: 0.3.10 2009-07-05 Initial SATA support, USB keyboard/mouse support, Paint clone, initial MSVC.[71][72]
Old version, no longer supported: 0.3.11 2009-12-16 Kdcom rewrite; Chinese/Korean fonts; compatibility updates; sound system improvements
Old version, no longer supported: 0.3.12 2010-10-20 Trap handler rewrite; timer and message handling rewrite; NMI support; SxS support; partial EMS support[73]
Old version, no longer supported: 0.3.13 2011-03-22 Heap manager rewrite, improved SATA support, fixed graphics issues[74]
Old version, no longer supported: 0.3.14 2012-02-07 ACPI enabled by default, WiFi support (unencrypted and WEP), theme support, new TCP/IP driver (LwIP), MSVC compatibility, Scatter/Gather DMA operations supported, shell32 rewrite[75]
Old version, no longer supported: 0.3.15 2013-05-30 USB support for mice, keyboard, and storage devices; rewritten session management; AHCI support with updated UniATA driver; alternate ReactOS Memory Management Module has taken over all memory management responsibilities except for sections; preliminary support for debugging ReactOS components using WinDbg; improvements based on results from the AutoHotkey application functionality test suite; Bugfixes based on running Driver Verifier on several bundled drivers[76]
Old version, no longer supported: 0.3.16[77] 2014-02-06 CSRSS rewrite; theme support improved; network card driver for the RTL8139, allowing ReactOS to support newer versions of QEMU out of the box[78]
Old version, no longer supported: 0.3.17[79] 2014-11-05 Inclusion of an NTVDM; font improvements;[80][81] bug fixes[82]
Old version, no longer supported: 0.4.0[83] 2016-02-16[84] Improved USB support, new file explorer shell and theming, improved VirtualBox and Virtual PC support, ext2 read/write support, NTFS read support and improved networking support
Old version, no longer supported: 0.4.1[85] 2016-05-17[86] Improved Activation Context, Btrfs support, improved Shell, USB bug fixes, support for Virtual Machine Shared Folders
Old version, no longer supported: 0.4.2 2016-08-16[87] Improved Btrfs and extended file system support, ReiserFS and UFS/FFS, introduced .NET Framework 2.0 and 4.0 support, Shell fixes and improvements
Old version, no longer supported: 0.4.3 2016-11-16[88] New Winsock library, initial sections support, usual bug fixes
Old version, no longer supported: 0.4.4 2017-02-16[89] Initial print stack support, minor font fixes, usual improvements and bug fixes
Old version, no longer supported: 0.4.5 2017-05-18[90] Improved rendering of fonts and font metrics, major fixes in kernel and drivers, Microsoft Office 2010 tested as functioning
Old version, no longer supported: 0.4.6 2017-09-01[91] Several fixes in dual-boot issues, improved theming support, NFS driver added, several kernel and filesystem fixes
Old version, no longer supported: 0.4.7 2017-12-06[92] Improved version of the applications manager RAPPS, implementation of the "Quick-Launch" toolbar in the explorer; various bug fixes in the filesystem drivers, improvements in the RDBSS/RXCE and NFS support.
Old version, no longer supported: 0.4.8 2018-04-14[93] Balloon notifications, notification tray, shell autocompletion, a new NTFS driver, crash dump reporting and experimental support for NT6+ software.
Old version, no longer supported: 0.4.9 2018-07-23[94] ReactOS is (again) self-hosting.
Old version, no longer supported: 0.4.10 2018-11-06[95] Supports BTRFS booting.
Current stable version: 0.4.11[5] 2019-03-04 Drivers for battery management (its icon is located in the taskbar, in the bottom right of the screen, next to the clock). Support for updating an existing ReactOS installation. Improved SATA support.
Legend:
Old version
Older version, still supported
Latest version
Latest preview version
Future release

Features

Commands

The following is a non-exhaustive list of commands that are supported by the ReactOS Command Prompt.[96]

Development

ReactOS core development

ReactOS is primarily written in C, with some elements, such as ReactOS Explorer and the sound stack, written in C++. The project compiles using both MinGW and Microsoft Visual Studio, and contributes to the development of the build systems used through the submission of patches to its components.[97]

The developers aim to make the kernel and usermode application programming interface (API) more compatible with Windows NT version 5.2 (Windows Server 2003) and to add support for more applications and hardware, with plans to target newer versions of Windows as development matures.[98] DirectX support is undertaken through ReactX, an in-house implementation. 2D hardware-accelerated rendering is done natively, while other drawing functionality is redirected to OpenGL as a stopgap solution.[17]

The development progress is influenced by the size of the development team and the level of experience among them. As an estimate of the effort required to implement Windows 7, Microsoft employed 1,000 or so developers, organized into 25 teams, with each team averaging 40 developers.[99] As of 2 September 2011, in the ReactOS entry in Ohloh, the page followed through the "Very large, active development team" link lists 33 developers who have contributed over a 12-month period and a cumulative total of 104 present and former users who have contributed code to the project via Apache Subversion since its inception.[100] In his presentation at Hackmeeting 2009 in Milan, ReactOS developer Michele C. noted that most of the developers learn about Windows architecture while working on ReactOS and have no prior knowledge.[101]

While ReactOS targets currently mainly the x86/AMD64 PC platform,[102] an effort to port to the ARM architecture was at one point "under way",[17] while it didn't produce much functionality and was abandoned.[103] Support for the Xbox, a variant IA-32 architecture, was added through the use of an architecture-specific HAL,[101] although this, along with a port to PowerPC, are no longer actively maintained[15]. It is worth noting that improved 64-bit support for ReactOS is "being worked on", however, development seems to be going slowly.[104]

Collaboration and reuse

While ReactOS has the aim to build a Windows-compatible kernel as open-source software, much of the surrounding required functionality to create a complete OS is already available in the greater open-source ecosystem. When available and possible, ReactOS therefore builds on and collaborates with already existing open-source projects.[18] Conversely, projects like Wine,[19] and formerly Captive NTFS[105] and Longene re-use the open-source ReactOS code-base as well.[106]

Hardware driver stack

On the hardware driver side, for instance the UniATA project provides Serial ATA drivers for ReactOS.[16][107] The project has also experimented with using the FullFAT library in its rewrite of its FAT Installable File System.[108] ReactOS makes use of the USB stack from Haiku both as a reference and as a foundation for its USB support.[109][110] Mesa 3D provides OpenGL rendering.[16][97]

Networking

ReactOS's network stack is built on the TCP portion of OSKit's port of the network stack in FreeBSD, along with an internally developed implementation for packet-oriented protocols like IP.[111] Later, lwIP was integrated into the ReactOS network stack.[42] Windows network services like LSASS, SAM, NETLOGON, and print spooling are already available as open-source alternative by the Samba/Samba TNG project. A fork of rdesktop is used as an implementation of a client software for Microsoft's proprietary Remote Desktop Protocol.

Wine cooperation

A simplified architecture diagram of ReactOS, with Wine dependencies indicated by the Wine logo. White boxes denote third-party binary software. Green boxes are "userland" components, red are kernel components.

The ReactOS and the Wine projects share the goal to run binary Windows software natively and can therefore share many dependencies and development.[19][112] ReactOS uses portions of the Wine project so that it can benefit from Wine's progress in implementing the Win32 API.[112] While Wine's NTDLL, USER32, KERNEL32, GDI32, and ADVAPI32 components cannot be used directly by ReactOS due to architectural differences, code snippets of them and other parts can be shared between both projects. The kernel is developed by ReactOS separately as Wine relies here on existing Unix-like kernels.[97][101]

Separately, the experimental Arwinss branch was created as an alternative means to improve USER32 and GDI32 support through an alternative implementation of the Win32 API. Whereas ReactOS's original Win32 subsystem was closely modeled after its equivalent in Windows, Arwinss combines the architecture of that subsystem with the corresponding implementation in Wine. To this end, Arwinss uses Wine's GDI32 and USER32 libraries with few changes to take fuller advantage of Wine's existing software compatibility. Arwinss also allows the user to optionally use a remote X server instead of a local display.[113]

Other

The Tango Desktop Project initiative provides open-source design guidelines and resources (as icons) for applications on desktop environments. FreeType is an open-source software development library, used to render text on to bitmaps and provides support for other font-related operations.[16] The KernelEx project is a Windows-API extension and compatibility layer project, which provides open-source implementations of some Windows-APIs.[114] Other contributing projects are MinGW, SYSLINUX, adns, ICU, GraphApp, Ext2, GNU FreeFont, DejaVu fonts, and Liberation fonts.[115][116][117]

Forks

Forks based on ReactOS are occasionally created:

Reception

Various people have acknowledged ReactOS and the implications of having a viable open-source drop-in replacement for Windows.[10] A 2004 article and interview of the German weekly magazine Der Spiegel describes ReactOS as directed at Windows users who want to renounce use of proprietary commercial software without having to switch to Linux.[10] DistroWatch, a Linux distribution's monitoring Web site, also lists ReactOS and describes it as "a free and open-source operating system based on the best design principles found in the Windows NT architecture."[124]

In his column for Free Software Magazine, David Sugar noted in 2006 that ReactOS would allow the use of applications depending on older versions of Windows whose APIs have been deprecated. He also recognized its potential to expand the total deployed base of free software, and as a resource for developers wanting to know undocumented Windows APIs in the course of writing portable applications.[12] PC Magazine columnist John C. Dvorak remarked in 2008 that the Windows NT architecture had remained largely unchanged, making it an ideal candidate for cloning, and believed that ReactOS could be "a bigger threat than Linux to Microsoft's dominance".[11] In response to Dvorak's column, ZDNet technology journalist Dana Blankenhorn noted in 2008 that a lack of corporate sponsors and partners had rendered the project harmless to Microsoft.[125][126] Echoing this, Thom Holwerda of OSNews in 2009 categorized ReactOS under a family of hobby operating systems maintained only by small groups of developers working in their spare time, lacking the financial support of more mainstream operating systems and the legacy of formerly mainstream ones such as RISC OS.[127]

In October 2015, a Network World review of ReactOS v0.3.17 noted "It's just like running Windows 2000" and praised the application package manager, a feature the original Windows is missing.[128]

Jesse Smith from DistroWatch Weekly reviewed ReactOS v0.4.9, and noted that ReactOS "ultimately had a similar problem: limited hardware support" and is not yet a stable operating system.[129]

Awards

The ReactOS Project won on the annual Seliger Youth Forum "The Best Presentation" award with 100,000 Russian rubles (~US$2700) in 2011, attended by Alexander Rechitskiy, one of the development team members.[130]

ReactOS was a featured project on SourceForge for the week beginning 27 February 2012, and 25 April 2013[131] along with several others. It was Project of the Month on SourceForge for June 2013.[132]

See also

  • Binary-code compatibility
  • coLinux, a project allowing Microsoft Windows and the Linux kernel to run simultaneously in parallel on the same machine
  • FreeDOS, a clone of MS-DOS
  • Longene, a hybrid operating system kernel intended to be binary-compatible with both the Microsoft Windows and Linux ecosystems
  • NDISwrapper, a recreation of Windows NT kernel parts inside the Linux Kernel to allow the use of Windows drivers in Linux
  • Wine, compatibility layer that runs Microsoft Windows applications on Unix-like operating systems

References

  1. ^ "ReactOS on Open Hub". openhub.net. Black Duck Open Hub. Retrieved 24 October 2014.
  2. ^ "ReactOS on GitHub". Retrieved 27 April 2019.
  3. ^ https://sourceforge.net/projects/reactos/files/ReactOS/
  4. ^ https://reactos.org/wiki/Installing_ReactOS
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  6. ^ "Download | ReactOS Project". www.reactos.org. Retrieved 28 July 2017.
  7. ^ Holwerda, Thom (5 March 2009). "ReactOS Targets Windows 2003, Vista". OSNews. Retrieved 18 April 2019.
  8. ^ vicmarcal (14 April 2018). "ReactOS 0.4.8 released!!". ReactOS.org Project News (Corporate blog). Archived from the original on 16 April 2018. Retrieved 8 July 2018. With software specifically leaving NT5 behind, ReactOS is expanding its target to support NT6+ (Vista, Windows 8, Windows 10) software. Cite uses deprecated parameter |deadurl= (help)
  9. ^ Stahl, Louis-F. (23 June 2015). "Russland erklärt ReactOS zu favorisierter Windows-Alternative". heise online. Retrieved 18 April 2019.
  10. ^ a b c d Sixtus, Von Mario (20 February 2004). "ReactOS: Das Nicht-Windows" (in German). Spiegel Online. Retrieved 11 December 2009.
  11. ^ a b Dvorak, John C. (4 April 2008). "What A New OS Needs". PC Magazine. Retrieved 11 December 2009.
  12. ^ a b Sugar, David (31 January 2006). "A reaction to ReactOS". Free Software Magazine. Archived from the original on 10 August 2007. Retrieved 11 December 2009. Cite uses deprecated parameter |deadurl= (help)
  13. ^ Thom Holwerda (14 November 2007). "ReactOS Gets OpenOffice.org 2 Support; New Release Plans". OSNews.
  14. ^ Tests_for_0.4.4 on reactos.org (February 2017)
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  16. ^ a b c d Royal, Simon (16 February 2014). "ReactOS: A Windows Compatible Alternative OS". lowendmac.com. Retrieved 10 January 2016. While the main core of ReactOS is built from scratch, it has some dependencies on existing software and protocols. It uses parts of Wine, networking in the form of lwIP, USB from Haiku, as well as FreeType, Mesa3D, and UniATA.
  17. ^ a b c Holwerda, Thom (17 January 2009). "ReactOS: Looking Back Upon 2008". OSNews. Retrieved 18 April 2019.
  18. ^ a b "ReactOS gets USB Stack, with Help from Us". Haiku. 20 February 2012. Retrieved 2 January 2016. The ReactOS and Haiku projects have had a friendly working relationship for several years now, with each group helping the other whenever possible.
  19. ^ a b c Vincent, Brian (15 May 2004). "Interview with Steven Edwards". winehq.com. Retrieved 6 January 2016. BV: Wine and ReactOS have had a mutually beneficial relationship. Is there anything Wine could do different that would help ReactOS development?[...] BV: You guys have certainly contributed a lot of your work back to Wine, including some of the utilities you've written. For instance, the task manager was recently ported from ReactOS. Do you guys have any plans in the works for developing more tools? Steven: I really want to see a solitaire clone make it in to Wine and ReactOS.[...] At some point we are going to have to develop replacement components for everything in Windows so if there is a program that Wine needs and ReactOS implements it then I will try to make sure it's released under a compatible license.
  20. ^ "Frontpage". ReactOS Web-page. ReactOS Foundation. Archived from the original on 20 September 2012. Retrieved 23 June 2013. Cite uses deprecated parameter |deadurl= (help)
  21. ^ Loli, Eugenia (16 October 2001). "Interview with Jason Filby from the ReactOS Project". OSNews. Retrieved 18 April 2019.
  22. ^ Loschwitz, Martin (March 2004), "Projects on the Move" (PDF), Linux Magazine, p. 87, archived from the original (pdf) on 19 May 2011, retrieved 18 November 2009 Cite uses deprecated parameter |deadurl= (help)
  23. ^ "ReactOS Foundation — ReactOS Wiki". www.reactos.org. Retrieved 6 March 2019.
  24. ^ a b "ФОНД АКТИВИЗАЦИИ КИБЕРПРОСТРАНСТВА, ФАК, РЕАКТОС — ФОНД, ФОНД РЕАКТОС, г. Саранск: ИНН: 1328170012, ОГРН: 1021301112876". egrulinfo.com. Retrieved 18 April 2019.
  25. ^ a b Ekush Emulator and Its License Pains on OSNews by Eugenia Loli (10 November 2004)
  26. ^ a b Ekush OS – stolen source code/copyright violation (archived 2004)
  27. ^ a b Ekush The Next Generation Operating System on akshor.com (archived 2004)
  28. ^ Hancock, Terry (29 August 2008). "What if copyright didn't apply to binary executables?". Free Software Magazine. Retrieved 25 January 2016. (...) ReactOS aims to run actual Windows binary executable programs. This means that ReactOS must implement the entire Windows environment. Functions must do exactly what their Windows counterparts would do. In other words, like our notional parallel stew recipes, ReactOS and Windows should be functionally identical. In order to avoid copyright prosecution, though, ReactOS must be expressly completely distinct and non-derivative from Windows. This is a careful tightrope walk! ReactOS is a free, clean room re-implemented drop-in replacement for Windows. So, consider this, especially regarding extremely simple library calls: is it legal for ReactOS to produce identical binary code to Windows?
  29. ^ Birr, Hartmut (18 January 2006). "Bye bye". ros-dev (Mailing list). Retrieved 3 January 2009.
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  31. ^ Birr, Hartmut (18 January 2006). "Bye bye". ros-dev (Mailing list). Retrieved 16 November 2009.
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External links

  • Official website
  • reactos on GitHub
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