# Chuyu-Team/YY-Thunks

Fix DecodePointer, EncodePointer,RegDeleteKeyEx etc. APIs not found in Windows XP RTM.

Repository: https://github.com/Chuyu-Team/YY-Thunks
Canonical: https://ross.abutalabs.com/products/yy-thunks
Language: C++
License: MIT
License Family: permissive
Last push: 2026-07-20T06:14:59+00:00

## Health v2 (maintenance only)
Score: 90/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 93, release rhythm 81, longevity 100
- inputs: {"age_days": 3030, "days_push": 44, "days_rel": 44, "gap_med": 66.5, "n_releases_24m": 9}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1015, forks 149 (observed 2026-08-28T04:03:14.226241+00:00)

## What it is
YY-Thunks is a C++ compatibility library that lets Windows applications run on older Windows versions like XP and 7 by automatically providing fallback implementations of newer APIs. It works via linker tweaks and dynamic API loading, requiring no source code changes.

## Use cases
- make my app run on windows xp
- fix missing api errors on older windows versions
- support windows 7 without changing code
- shim GetTickCount64 for xp
- build c++ app compatible with legacy windows
- resolve DecodePointer not found on xp

## When to choose
- you need to support Windows XP/7 with a modern toolchain
- you want API compatibility without modifying source code
- you build native C++ Windows apps distributed to legacy systems

## When to avoid
- you only target modern Windows 10/11
- you need .NET or managed-code compatibility
- you require APIs that cannot be reasonably emulated (e.g., kernel drivers)

## Facets
- artifact type: library
- maturity: active
- function: developer-tools, sdk, plugin-system
- domain: developer-tools, windows, cross-platform
- platform: windows, cpp, cli
- tags: api-shimming, windows-xp-compatibility, linker-thunks, backward-compatibility, nuget

## Member repositories
- Chuyu-Team/YY-Thunks (main) score 90

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:03:14.226241+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T07:11:23.248844+00:00, confidence not recorded.
  - readme: https://github.com/Chuyu-Team/YY-Thunks (fetched 2026-08-28T04:03:14.226241+00:00, sha 6b4e01111741)
- Data as of 2026-08-30T08:39:29.467469+00:00.