The practical aspects of programming are considered in Borland "Delphi 2005 for .NET" The questions of realization are described .NET in Delphi, and also syntax and objective models of two programming languages Delphi and S#.The features of development of appendixes are shown for two basic types of appendixes Windows Forms and VCL.NET. Large attention is spared creation of appendix for work with databases.Technologies of ADO are considered.NET a