MConnect

TOLEnterpriseConnection is used in the client portion of a multi-tiered database application to establish and maintain the connection between the client and a remote application server using OLEnterprise. This component is provided for backward compatibility. 

TOLEnterpriseConnection establishes the initial connection between the client application and a remote application server using OLEnterprise. Once the connection is established, the client registers any or all of its client datasets with the remote server, and these client datasets use the IAppServer interface from the OLEnterprise connection component to communicate with providers on the application server, or to otherwise call the application server's data module interface. 

To connect to remote application servers using DCOM, use the TDCOMConnection component instead. To connect client applications to remote application servers using TCP/IP sockets, use TSocketConnection. To connect client applications to remote application servers using HTTP, use TWebConnection. To connect to remote application servers using SOAP, use TSOAPConnection. 

TClientDataSet 

TSocketConnection 

TDCOMConnection 

TRemoteDataModule 

IAppServer 

TWebConnection