C C++ Objective-C Assembly CMake Python Other
Switch branches/tags
backups/0.3.17@66124 backups/xmlbuildsystem@15601 backups/xen@40467 backups/wlan-bringup@60693 backups/winldr@40467 backups/win32k_user_rewrite@16797 backups/win32k_user_reconstruction@16796 backups/win32k_rewrite_attempt@23356 backups/win32k_message_rewrite_20031124@12474 backups/win32k_message_rewrite@12473 backups/win32k-stable@33466 backups/win32k-gdi-dx@36850 backups/vs_jc@60583 backups/vs_jc@59301 backups/videoprt_pnp_14032004@12472 backups/vfat_fast_26072004@12471 backups/usb2_6@36850 backups/usb-bringup@55523 backups/usb-bringup-trunk@60667 backups/unmaintained@36848 backups/unlabeled-1.123.2@12462 backups/unlabeled-1.120.8@12461 backups/unlabeled-1.120.6@12460 backups/unlabeled-1.71.12@12469 backups/unlabeled-1.67.14@12467 backups/unlabeled-1.67.12@12466 backups/unlabeled-1.67.8@12468 backups/unlabeled-1.55.2@12464 backups/unlabeled-1.3.1@12463 backups/umode_net_branch@20312 backups/umode-network-branch@37897 backups/the-real-msvc@60644 backups/tcpip_revolution@71025 backups/tcp-rewrite-branch@60668 backups/sndblst@72664 backups/silverblade-audio@39727 backups/shell32_new-bringup@60646 backups/shell-experiments@75904 backups/services--dd--floppy@12459 backups/scmhack-12042004@12458 backups/rox-u@36851 backups/ros@12450 backups/ros-csrss@60644 backups/ros-csrss@57560 backups/ros-branch-0_4_6@75728 backups/ros-branch-0_4_5@74569 backups/ros-branch-0_4_4@74002 backups/ros-branch-0_4_3@73437 backups/ros-branch-0_4_2@73087 backups/ros-branch-0_4_1@71718 backups/ros-branch-0_4_0@70757 backups/ros-branch-0_3_16-clt2014@63729 backups/ros-branch-0_3_15-lt2013@59304 backups/ros-branch-0_3_14@55492 backups/ros-branch-0_3_14-clt2012@56146 backups/ros-branch-0_3_13@51071 backups/ros-branch-0_3_13@51035 backups/ros-branch-0_3_13-clt2011@51081 backups/ros-branch-0_3_12@49215 backups/ros-branch-0_3_11@44688 backups/ros-branch-0_3_11-clt2010@46228 backups/ros-branch-0_3_10@41757 backups/ros-branch-0_3_9@40702 backups/ros-branch-0_3_8@39330 backups/ros-branch-0_3_8-fosdem@40472 backups/ros-branch-0_3_7@37181 backups/ros-branch-0_3_7@37061 backups/ros-branch-0_3_6@35137 backups/ros-branch-0_3_5@34197 backups/ros-branch-0_3_4@31965 backups/ros-branch-0_3_3@28875 backups/ros-branch-0_3_3-new@29055 backups/ros-branch-0_3_1@26296 backups/ros-branch-0_3_1@25452 backups/ros-branch-0_3_1-old@26018 backups/ros-branch-0_3_0@23785 backups/ros-branch-0_2_9@20309 backups/ros-branch-0_2_9@19949 backups/ros-branch-0_2_8@18976 backups/ros-branch-0_2_7@18976 backups/ros-branch-0_2_6@15683 backups/ros-branch-0_2_5@15682 backups/ros-branch-0_2_4@12457 backups/ros-branch-0_2_3@12456 backups/ros-branch-0_2_2@12455 backups/ros-branch-0_2_1@12454 backups/ros-branch-0_2_0@12453 backups/ros-branch-0_1_14@12451 backups/ros-branch-0_1_5@12452 backups/ros-amd64-bringup@60669 backups/reactx@60648 backups/reactx@49912 backups/reactx@37255 backups/reactx@29555 backups/reactos@14242 backups/reactos@12449 backups/reactos-yarotows@57446 backups/rbuild@57446 backups/prep0016@12448 backups/powerpc@29962
Nothing to show
Clone or download
learn-more [APPHELP_APITEST] Fix rc dependency.
As pointed out by Thomas.
Latest commit 13a3cf0 Aug 1, 2018
Permalink
Failed to load latest commit information.
.github Update pull request template with additional info Nov 6, 2017
base [UMPNPMGR] Partially implement ReenumerateDeviceInstance which is nee… Aug 12, 2018
boot [REACTOS] Improve how some ASSERTMSG() message values are printed: en… Aug 8, 2018
dll [RTL][KERNEL32] Add a comment indicating we need SEH in RtlImageNtHea… Aug 13, 2018
drivers [REACTOS] Improve how some ASSERTMSG() message values are printed: en… Aug 8, 2018
hal [HAL] Remove misleading debug prints about USB controllers. Aug 8, 2018
media [FONTS] Delete 16px bitmap from Tahoma Bold Jun 5, 2018
modules [APPHELP_APITEST] Fix rc dependency. Aug 13, 2018
ntoskrnl [NTOSKRNL] Don't use anonymus allocations for MM objects Aug 13, 2018
sdk [RTL][KERNEL32] Add a comment indicating we need SEH in RtlImageNtHea… Aug 13, 2018
subsystems [REACTOS] Fix 64 bit issues Aug 4, 2018
win32ss [WIN32SS][FONT] Fix font metrics (#713) Aug 12, 2018
.gitattributes Fix remaining text file line endings in the tree. (#18) Oct 6, 2017
.gitignore Add modules/optional to .gitignore Oct 7, 2017
.gitmessage [CONTRIBUTING] Update .gitmessage Feb 25, 2018
.travis.yml [TRAVIS-CI] Increase the git clone depth a bit. Oct 19, 2017
CMakeLists.txt [CMAKE] Zap builddir.h.cmake and instead define macros globally Jun 30, 2018
CODE_OF_CONDUCT.md Add a document on the rules we should follow while managing/reviewing… Jun 24, 2018
CONTRIBUTING.md Add a document on the rules we should follow while managing/reviewing… Jun 24, 2018
COPYING Git conversion: Make reactos the root directory, move rosapps, rostes… Oct 3, 2017
COPYING.ARM Git conversion: Make reactos the root directory, move rosapps, rostes… Oct 3, 2017
COPYING.LIB Git conversion: Make reactos the root directory, move rosapps, rostes… Oct 3, 2017
COPYING3 Git conversion: Make reactos the root directory, move rosapps, rostes… Oct 3, 2017
COPYING3.LIB Git conversion: Make reactos the root directory, move rosapps, rostes… Oct 3, 2017
CREDITS [CREDITS] Update the credits list Jun 3, 2018
Doxyfile Git conversion: Make reactos the root directory, move rosapps, rostes… Oct 3, 2017
INSTALL Git conversion: Make reactos the root directory, move rosapps, rostes… Oct 3, 2017
PULL_REQUEST_MANAGEMENT.md Add a document on the rules we should follow while managing/reviewing… Jun 24, 2018
PreLoad.cmake Git conversion: Make reactos the root directory, move rosapps, rostes… Oct 3, 2017
README.md Update README.md with the latest release Jul 24, 2018
apistatus.lst Git conversion: Make reactos the root directory, move rosapps, rostes… Oct 3, 2017
appveyor.yml [APPVEYOR] Start with the MSVC x64 build so we can get to what breaks… Apr 3, 2018
configure.cmd [CMAKE] Add support for VS 15.7.1 / CL 19.14.x Jun 24, 2018
configure.sh Git conversion: Make reactos the root directory, move rosapps, rostes… Oct 3, 2017
toolchain-clang.cmake Git conversion: Make reactos the root directory, move rosapps, rostes… Oct 3, 2017
toolchain-gcc.cmake Git conversion: Make reactos the root directory, move rosapps, rostes… Oct 3, 2017
toolchain-msvc.cmake [CMAKE/CLANG-CL] Force clang-cl's identity to be MSVC instead of the … Nov 24, 2017

README.md


ReactOS 0.4.9 Release Download ReactOS SourceForge Download License Donate Follow on Twitter

Quick Links

What is ReactOS?

ReactOS™ is an Open Source effort to develop a quality operating system that is compatible with applications and drivers written for the Microsoft® Windows™ NT family of operating systems (NT4, 2000, XP, 2003, Vista, Seven).

The ReactOS project, although currently focused on Windows Server 2003 compatibility, is always keeping an eye toward compatibility with Windows Vista and future Windows NT releases.

The code of ReactOS is licensed under GNU GPL 2.0.

Building

appveyor.badge travis.badge rosbewin.badge rosbeunix.badge coverity.badge

To build the system it is strongly advised to use the ReactOS Build Environment (RosBE). Up-to-date versions for Windows and for Unix/GNU-Linux are available from our download page at: http://www.reactos.org/wiki/Build_Environment.

Alternatively one can use Microsoft Visual C++ (MSVC) version 2010+. Building with MSVC is covered here: https://www.reactos.org/wiki/Building_with_MSVC.

Binaries

To build ReactOS you must run the configure script in the directory you want to have your build files. Choose configure.cmd or configure.sh depending on your system. Then run ninja <modulename> to build a module you want or just ninja to build all modules.

Bootable images

To build a bootable CD image run ninja bootcd from the build directory. This will create a CD image with a filename bootcd.iso.

See "Building ReactOS" for more details.

Installing

ReactOS currently can only be installed on a machine that has a FAT16 or FAT32 partition as the active (bootable) partition. The partition on which ReactOS is to be installed (which may or may not be the bootable partition) must also be formatted as FAT16 or FAT32. ReactOS Setup can format the partitions if needed.

To install ReactOS from the bootable CD distribution, extract the archive contents. Then burn the CD image, boot from it, and follow the instructions.

See "Installing ReactOS" Wiki page or INSTALL for more details.

Testing

If you discover a bug in ReactOS search on JIRA first - it might be reported already. If not report the bug providing logs and as many information as possible.

See "File Bugs" for a guide.

NOTE: The bug tracker is not for discussions. Please use #reactos Freenode IRC channel or our forum.

Contributing prwelcome.badge

We are always looking for developers! Check how to contribute if you are willing to participate.

You can also support ReactOS by donating! We rely on our backers to maintain our servers and accelerate development by hiring full-time devs.

More information

ReactOS is a Free and Open Source operating system based on the Windows architecture, providing support for existing applications and drivers, and an alternative to the current dominant consumer operating system.

It is not another wrapper built on Linux, like WINE. It does not attempt or plan to compete with WINE; in fact, the user-mode part of ReactOS is almost entirely WINE-based and our two teams have cooperated closely in the past.

ReactOS is also not "yet another OS". It does not attempt to be a third player like any other alternative OS out there. People are not meant to uninstall Linux and use ReactOS instead; ReactOS is a replacement for Windows users who want a Windows replacement that behaves just like Windows.

More information is available at: https://www.reactos.org.

Also see the media/doc subdirectory for some sparse notes.

Who is responsible

Active devs are listed as members of GitHub organization. See also the CREDITS file for others.

Code mirrors

The main development is done on GitHub. We have an alternative mirror in case GitHub is down.

There is also an obsolete SVN archive repository that is kept for historical purposes.