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ReactOS: what changed

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11## Overview
22
33[ReactOS](http://www.reactos.org) is a free, open source clone of Windows aiming for compatibility with Windows XP/2003, along with some extensions from later versions. ReactOS has been in development for a long time and has not yet reached beta stage, but Lazarus can run on it.
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5-<figure>
6-<img src="ReactOS.png" title="ReactOS_v03.15" />
7-<figcaption>ReactOS_v03.15</figcaption>
8-</figure>
5+![](/wiki-images/e/eb/ReactOS.png)
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107## ReactOS installation
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129If you want to experiment with ReactOS, it's a good idea to use a Virtual Machine (e.g. VirtualBox) with a snapshot boot CD as ReactOS development is quick and a lot of bugs get fixes between binary releases. It is easy to upgrade an existing VM install by running an upgrade from a newer boot CD.
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1411## FPC installation
1512
1613Because Lazarus can be installed without problems, presumably the same applies for installing FPC. [[fpcup]] is periodically tried on ReactOS as well (it requires installing an SVN client first); without success at least up to ReactOS r63093.
1714
1815## Lazarus installation
1916
2017ReactOS aims to emulate Windows; it is possible to just run the Lazarus installer. However, ReactOS includes a software installation program (RAPPS) which allows you to download the normal Lazarus installer and install it with a few mouse clicks.
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2219## Bugs
2320
2421ReactOS bugs are tracked in their bugtracker, e.g. this bug about flipped icons when running Lazarus: [1](https://jira.reactos.org/browse/CORE-6320)
2522
2623## See also
2724
2825- [[Small Virtual Machines]]
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3027---
3128*From the Free Pascal wiki, page "ReactOS", as it stood on 2019-12-30 after a change by Trev, out of the wiki's dump of 2024-05-26. Copyright stays with the author who wrote it, according to the old wiki's [[Licensing]] page. If you have concerns about this material, [message the admin](/wiki-contact).*
3229Category: Lazarus
3330Category: Operating Systems and Platforms
3431Category: ReactOS
3532Category: Windows

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