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Welcome to ReactOS

Imagine running your favorite Windows applications and drivers in an open-source environment you can trust.
That's the mission of ReactOS!


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Recent News

Detect kernel information disclosure by Bochspwn-reloaded - GSoC 2020 - First week

Introduction Hello, I am Nguyen Trung Khanh (@khanhnt) from Vietnam and I am one of the GSoC students of ReactOS. My project is running ReactOS on bochspwn-reloaded to list and fix all the bugs which were found by the tool. Additionally, I have a week to implement detection of uninitialized memory use. The first week Before GSoC, I did compile bochspwn-reloaded and run ReactOS on it so my work in the first week is pretty easy.

Porting Syzkaller to ReactOS - GSoC 2020

Hey, I am Suraj K Suresh (@Freakston), one of the GSoC students of ReactOS. This is the first time I’ve applied for GSoC and my mentors for the project are Victor Perevertkin and Timo Kreuzer. My project is “Porting Syzkaller to ReactOS”. The project is getting one of the most famous Linux fuzzers to fuzz ReactOS. The project will lead to improvement of the kernel codebase by detecting code crashes.

Rapps Enhancement - GSoC 2020

Hello, I am He Yang (@kernel.bin) from China. This year, I signed up for GSoC, and I’m very glad to be given the chance to work with the ReactOS team. My mentors for the project are Mark Jansen and Ioannis Adamopoulos. It’s a great honor to have two mentors to guide me. My project is “Application manager RAPPS”. RAPPS is used by almost everyone using ReactOS, thus making it essential to get RAPPS easy-to-use, powerful and bug-free.

ReactOS Build Environment 2.2 released

The ReactOS Build Environment (RosBE), our curated set of compilers and build tools, has just received a major upgrade. After more than 7 years of using the same and now ancient GCC 4.7.2, ReactOS is finally going to be built with the help of a modern compiler (GCC 8.4.0). Among other things, the new version better detects programming mistakes like improperly sized buffers, and comes with improved error messages to pinpoint such mistakes to the corresponding position in code.

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