Windows Server 2003 Source

This file contains Windows Server 2003 RTM source code, with slight modifications and patches applied

Windows Server 2003 Missing Binaries

This file contains missing binaries for source code, to add them after compilation

OpenXP Patch Kit v1.0.0 (November 11, 2025)

This is the first patch kit which is officially hosted on our Codeberg repository! Therefore, according to Git release methodology, we also use versioning scheme. Since this is a relatively new approach, here we introducing minor changes which will grow eventually with community efforts. Here's the quickest changes:

• ARM Compilers Update

  Now, the compilers for ARM were updated once again, being replaced with Visual Studio 2005 versions, which add better support for Armv4, MIPS and Hitachi SH compilers. As a result, we have also updated armmk.inc by removing deprecated flags and newer conditions for matching 2005 compilation style. The missing headers are in their way and will be included in the next release.

• Cast.lib removal

  As before, cast.lib was one of the stubs which should be decompiled for fulfilling the source code, but now it is replaced with an actual replacement source code, which eliminates need of that library! Thanks to our Discord community member Osmium (@osmium77) for this effort!

• QFE Number

  Now the build system generates QFE number of the build, and appends it's minor version like in later versions of Windows in BuildName.txt.

OpenXP Patch Kit (July 27, 2025)

This patch kit combines February 24, 2025 and October 16, 2024 patch kits among with following fixes:

• SXSOfflineInstall.exe

  Fixed version for Windows 11 and later have been included, which correctly generates `asms01.cab` file.

• Feedback.exe issue

  The `feedback.exe` is intended for internal use, and it was mistakenly included into patch kit. It is removed.

OpenXP Patch Kit (February 24, 2025)

This patch kit features incremental changes, such as:

• Certificates update

  Introduced newer certificates, generated at November 2024 and fully compatible with Windows XP and Server 2003, meaning that you can actually compile source in this operating system! This eliminates need of `driver_3des.pfx` and will be deleted in next full source release. If you smell incorrect behavior of these certificates, you can feel free to generate your own certificates by fetching our CertUtil repo and following instructions.

• Slow start of ARM integration

  A bit newer set of compilers (actual at 2nd half of 2003) for ARM have been added from eMbedded C++ 4.0 and it's further releases, meaning that works on supporting OpenXP for ARM goes on. In future you may expect updates of headers to make ARM compilation possible!

• Razzle updates

  Now you can accomplish official builds without need of BuildMachines.txt, because now Razzle contains implementation of making builds official.
  Also updated razzle64n.cmd, with ability to parse existance of "offline" flag.

OpenXP Patch Kit (October 16, 2024)

This patch kit features incremental changes, such as:

• AMD64 backports for Application Compatibility (excluding AcXtrnal.dll for now)! When you're building AMD64 build, make sure you're registered appropriate DLL within the build (change directory to C:\Windows\System32 and run regsvr32 %DLL_NAME%.dll),
• Backport of Advansys SCSI driver for AMD64 and ability to add SCSI drivers into ISO!
• Inclusion of i2o and initio drivers, which was added from Server 2003 SP1 DDK and SPTI tool from same DDK. Previously, initio wasn't available in source code because of unknown reasons,
• Ability to unlock MSI installations on AMD64 builds via installer (thanks to our developer @vaualbus for proper consulting),
• Themes signing procedure now works for other platforms. Previously it contained script which allowed theme signing for x86 only.

OpenXP Patch Kit (September 7, 2024)

This patch kit doesn't feature incremental changes, except of being separated from source