Practical aspects of programming in Borland Delphi 2005 for .NET are considered. The issues of .NET implementation in Delphi are described, as well as the syntax and object models of two programming languages ​ ​ - Delphi and C #. Shows the features of developing applications for two main types of applications - Windows Forms and VCL.NET. Much attention is paid to creating an application for working with databases.