| VCL Object and Component | .NET |
| TAbstractSocket | System.Net.Sockets.Socket |
| TClientSocket | System.Net.Sockets.Socket |
| TClientWinSocket | System.Net.Sockets.Socket |
| TCustomServerSocket | System.Net.Sockets.Socket |
| TCustomSocket | System.Net.Sockets.Socket |
| TCustomWinSocket | System.Net.Sockets.Socket |
| TServerClientThread | System.Threading.Thread |
| TServerClientWinSocket | System.Net.Sockets.Socket |
| TServerSocket | System.Net.Sockets.Socket |
| TServerWinSocket | System.Net.Sockets.Socket |
| TWinSocketStream | System.IO.Stream |