> 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/security/logon32_provider.md).

# LOGON32\_PROVIDER

```csharp
public enum LOGON32_PROVIDER : uint
{
    LOGON32_PROVIDER_DEFAULT = 0U,
    LOGON32_PROVIDER_WINNT50 = 3U,
    LOGON32_PROVIDER_WINNT40 = 2U,
}
```