> 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/sid_name_use.md).

# SID\_NAME\_USE

```csharp
public enum SID_NAME_USE
{
    SidTypeUser = 1,
    SidTypeGroup = 2,
    SidTypeDomain = 3,
    SidTypeAlias = 4,
    SidTypeWellKnownGroup = 5,
    SidTypeDeletedAccount = 6,
    SidTypeInvalid = 7,
    SidTypeUnknown = 8,
    SidTypeComputer = 9,
    SidTypeLabel = 10,
    SidTypeLogonSession = 11
}
```