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SetEnvironmentStringsW function (processenv.h)

Sets the environment strings of the calling process (both the system and the user environment variables) for the current process.

Syntax

BOOL SetEnvironmentStringsW(
  LPWCH NewEnvironment
);

Parameters

NewEnvironment

The environment variable string using the following format:

Var1=Value1\0
Var2=Value2\0
Var3=Value3\0
...
VarN=ValueN\0\0

Return value

If the function succeeds, the return value is nonzero.

If the function fails, the return value is zero. To get extended error information, call GetLastError.

Requirements

Requirement Value
Minimum supported client Windows XP [desktop apps | UWP apps]
Minimum supported server Windows Server 2003 [desktop apps | UWP apps]
Header processenv.h
Library kernel32.lib
DLL kernel32.dll

See also

Environment Variables

GetEnvironmentStrings

GetEnvironmentVariable

SetEnvironmentVariable