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The history of Windows Internals via symbols.
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Latest commit dcd3d11 Feb 28, 2019
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Tools Add files Feb 28, 2019
Manifest.txt Add files Feb 28, 2019


This repository contains header files with structures, unions, enums, global variables and functions names from the symbol files for the core Windows operating system components, and tools to help get and compare the files.

Note: Because there is no correct way to get information about nested unnamed structures and unions, some structures and unions are not the exact copy of the original.

How to install tools

Symbols Explorer

  1. Download Symbols Explorer.
  2. Copy SymExp.exe to a Debugging Tools for Windows folder. For example: C:\Program Files (x86)\Windows Kits\10\Debuggers\x64.

Symbols Scripts

  1. Copy Symbols folder from the Tools folder to "C:\Users\{UserName}\Documents\WindowsPowerShell\Modules".


  1. Install Visual Studio Editor.
  2. Copy Diff.bat from the Tools folder to "C:\Users\{UserName}\AppData\Roaming\Microsoft\Windows\SendTo".

How to compare header files

  1. Select two header files.
  2. Right click on the first file and then select "Send To->Diff" from the context menu.

How to download symbol and image files

Get-Symbols -FilePath "C:\SymStore\Manifest.txt" -Destination "C:\SymStore\Symbols"

Note: Unfortunately, some symbol and image files are missing from the Microsoft symbol server and some image files are stored with original name and SymChk from Debugging Tools for Windows is not able to download those image files.

How to store image files by version

Add-ImageFile -FilePath "C:\SymStore\Symbols\ntoskrnl.exe\a45bf00aa6f000\ntoskrnl.exe" -Destination "C:\SymStore\Binaries"
Add-ImageFiles -Path "C:\SymStore\Symbols" -Destination "C:\SymStore\Binaries"
Add-ImageFiles -Path "C:\SymStore\Symbols" -Destination "C:\SymStore\Binaries" -Include *.exe
Add-ImageFiles -Path "C:\SymStore\Symbols" -Destination "C:\SymStore\Binaries" -Include hal*.dll

How to get header files

New-HeaderFile -FilePath "C:\SymStore\Binaries\ntoskrnl.exe\10.0.17763.316\x64\ntoskrnl.exe" -Destination "C:\SymStore\Include\ntoskrnl.exe"
New-HeaderFiles -Path "C:\SymStore\Binaries" -Destination "C:\SymStore\Include\ntoskrnl.exe" -Include nt*.exe
New-HeaderFiles -Path "C:\SymStore\Binaries" -Destination "C:\SymStore\Include\ntdll.dll" -Include ntdll.dll
New-HeaderFiles -Path "C:\SymStore\Binaries" -Destination "C:\SymStore\Include\hal.dll" -Include hal*.dll

Windows Version Information

Version Name
5.0.2195.7376 Windows 2000 SP4
5.1.2600.0 Windows XP
5.1.2600.1106 Windows XP SP1*
5.1.2600.2180 Windows XP SP2
5.1.2600.6419 Windows XP SP3
5.2.3790.0 Windows Server 2003*
5.2.3790.1830 Windows Server 2003 SP1
5.2.3790.3959 Windows Server 2003 SP2
6.0.6000.16386 Windows Vista
6.0.6001.18000 Windows Vista SP1
6.0.6002.18005 Windows Vista SP2
6.1.7600.16385 Windows 7
6.1.7601.17514 Windows 7 SP1
6.2.9200.16384 Windows 8
6.3.9600.16384 Windows 8.1
6.3.9600.17031 Windows 8.1 Update
10.0.10240.16384 Windows 10 1507
10.0.10586.0 Windows 10 1511
10.0.14393.0 Windows 10 1607
10.0.15063.0 Windows 10 1703
10.0.16299.15 Windows 10 1709
10.0.17134.1 Windows 10 1803
10.0.17763.1 Windows 10 1809

* Header files are not present because there are no symbol files on the Microsoft symbol server.

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