---
name: "RegSetValueExA"
section: "3w"
platform: "linux"
package: "libwine-dev"
version: "1.4.1-4"
release: "Debian 7 (Wheezy)"
platforms: ["linux"]
url: "https://new.carta.tech/RegSetValueExA"
---

# RegSetValueExA(3w)

## NAME

**RegSetValueExA** (ADVAPI32.@)

## SYNOPSIS

LSTATUS RegSetValueExA\
  (\
   HKEY        *hkey*,\
   LPCSTR      *name*,\
   DWORD       *reserved*,\
   DWORD       *type*,\
   CONST BYTE\* *data*,\
   DWORD       *count*\
  )

## DESCRIPTION

See **[RegSetValueExW(3w)](/RegSetValueExW/3w.md)**.

## NOTES

win95 does not care about *count* for **REG\_SZ** and finds out the len by itself (js) **NT** does definitely care (aj)

## IMPLEMENTATION

Declared in **"winreg.h"**.

Implemented in **"dlls/advapi32/registry.c"**.

Debug channel **"reg"**.