> For the complete documentation index, see [llms.txt](https://www.pinvoke.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://www.pinvoke.dev/kernel32/createfiber.md).

# CreateFiber

```csharp
[DllImport("KERNEL32.dll", ExactSpelling = true, SetLastError = true)]
[DefaultDllImportSearchPaths(DllImportSearchPath.System32)]
public static extern unsafe void* CreateFiber(
    nuint dwStackSize,
    LPFIBER_START_ROUTINE lpStartAddress,
    [Optional] void* lpParameter);
```

[LPFIBER\_START\_ROUTINE](/threading/lpfiber_start_routine.md)