Compatibility Library
To help your upgraded applications work, Visual Basic .NET includes a compatibility library. This library enables support for features such as control arrays, ADO data binding, and loading resources from a .res file. You can also use some of the functions in the compatibility library to convert between twips and pixels or between System.Drawing.Image and IPicture. All objects and functions contained in the compatibility library can be found under the namespace Microsoft.VisualBasic.Compatibility.VB6. The Upgrade Wizard automatically adds a reference to the compatibility library for all upgraded applications.