CreateSymbolicLinkA function (winbase.h)
Creates a symbolic link.
To perform this operation as a transacted operation, use the CreateSymbolicLinkTransacted function.
Syntax
BOOLEAN CreateSymbolicLinkA(
[in] LPCSTR lpSymlinkFileName,
[in] LPCSTR lpTargetFileName,
[in] DWORD dwFlags
);
Parameters
[in] lpSymlinkFileName
The symbolic link to be created.
This parameter may include the path.
By default, the name is limited to MAX_PATH characters. To extend this limit to 32,767 wide characters, prepend "\\?\" to the path. For more information, see Naming Files, Paths, and Namespaces.
Tip
Starting with Windows 10, Version 1607, you can opt-in to remove the MAX_PATH limitation without prepending "\\?\". See the "Maximum Path Length Limitation" section of Naming Files, Paths, and Namespaces for details.
[in] lpTargetFileName
The name of the target for the symbolic link to be created.
If lpTargetFileName has a device name associated with it, the link is treated as an absolute link; otherwise, the link is treated as a relative link.
This parameter may include the path.
By default, the name is limited to MAX_PATH characters. To extend this limit to 32,767 wide characters, prepend "\\?\" to the path. For more information, see Naming Files, Paths, and Namespaces.
Tip
Starting with Windows 10, Version 1607, you can opt-in to remove the MAX_PATH limitation without prepending "\\?\". See the "Maximum Path Length Limitation" section of Naming Files, Paths, and Namespaces for details.
[in] dwFlags
Indicates whether the link target, lpTargetFileName, is a directory.
| Value | Meaning |
|---|---|
|
The link target is a file. |
|
The link target is a directory. |
|
Specify this flag to allow creation of symbolic links when the process is not elevated. In UWP, Developer Mode must first be enabled on the machine before this option will function. Under MSIX, developer mode is not required to be enabled for this flag. |
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.
Remarks
Symbolic links can either be absolute or relative links. Absolute links are links that specify each portion of the path name; relative links are determined relative to where relative–link specifiers are in a specified path. Relative links are specified using the following conventions:
- Dot (. and ..) conventions—for example, "..\" resolves the path relative to the parent directory.
- Names with no slashes (\\)—for example, "tmp" resolves the path relative to the current directory.
- Root relative—for example, "\Windows\System32" resolves to "current drive:\Windows\System32".
- Current working directory–relative—for example, if the current
working directory is C:\Windows\System32, "C:File.txt" resolves to
"C:\Windows\System32\File.txt".
Note If you specify a current working directory–relative link, it is created as an absolute link, due to the way the current working directory is processed based on the user and the thread.
In Windows 8 and Windows Server 2012, this function is supported by the following technologies.
| Technology | Supported |
|---|---|
| Server Message Block (SMB) 3.0 protocol | Yes |
| SMB 3.0 Transparent Failover (TFO) | Yes |
| SMB 3.0 with Scale-out File Shares (SO) | No |
| Cluster Shared Volume File System (CsvFS) | No |
| Resilient File System (ReFS) | Yes |
CsvFs does not support soft link or any other reparse points.
Note
The winbase.h header defines CreateSymbolicLink as an alias which automatically selects the ANSI or Unicode version of this function based on the definition of the UNICODE preprocessor constant. Mixing usage of the encoding-neutral alias with code that not encoding-neutral can lead to mismatches that result in compilation or runtime errors. For more information, see Conventions for Function Prototypes.
Requirements
| Requirement | Value |
|---|---|
| Minimum supported client | Windows Vista [desktop apps only] |
| Minimum supported server | Windows Server 2008 [desktop apps only] |
| Target Platform | Windows |
| Header | winbase.h (include Windows.h) |
| Library | Kernel32.lib |
| DLL | Kernel32.dll |