# WSALookupServiceBegin

```csharp
[DllImport("ws2_32.dll", SetLastError = true)]
public static extern int WSALookupServiceBegin(
   IntPtr qsRestrictions,
   uint dwControlFlags,
   ref IntPtr lphLookup
);
```

Microsoft documentation: [Link](https://learn.microsoft.com/en-us/windows/win32/api/winsock2/nf-winsock2-wsalookupservicebegina)