winsiderss/phnt

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1463 stars · 220 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A collection of Windows Native API (NT API) header files for user-mode C/C++ programs, maintained since 2009 for the Process Hacker/System Informer projects. It provides the most up-to-date Native API definitions gathered from Microsoft headers, symbol files, and reverse engineering.

Use cases

• call undocumented Windows NT native APIs from user-mode code
• access Nt/Zw functions not exposed in the official Windows SDK
• target specific Windows versions from XP to Windows 11 with version-gated definitions
• build system internals tools like process monitors or malware analysis utilities
• reverse engineer Windows internals and need accurate NTAPI structures and enums

When to choose

• you need Native API definitions more complete and current than the Windows SDK provides
• you are developing system-level Windows tools in C/C++
• you want a permissively licensed (MIT) header-only NTAPI SDK

When to avoid

• you only need standard documented Win32 APIs available in the Windows SDK
• you are writing kernel-mode drivers (these headers target user-mode)
• you need cross-platform code that does not depend on Windows internals

Facets

library · maturity active

sdk developer-tools reverse-engineering developer-tools operating-systems windows windows c cpp native-api ntapi headers system-informer process-hacker wdk

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