source compression algorithm LZS. Several times more powerful, but also slower than the RDC.

the source of the algorithm of remote differential compression (RDC). Not very powerful, but extremely fast.

ADO  Data控件  ADO  Data控件与内部Data控件以及Remote  Data控件（RDC）相似。用户可以使用ADO  Data控件快速地创建一个到数据库的连接。-ADOData controls ADOData internal controls and RemoteData Control Data Control (RDC) is similar. Users can use ADOData controls to quickl