This .NET class wraps the AcDbRegAppTableRecord ObjectARX class. 

Objects of this class represent records in the RegAppTable (known as the APPID symbol table in AutoCAD and DXF). Each of these records represents an application ID used to identify a group of Extended Entity Data attached to objects in the drawing database.

Autodesk.AutoCAD.DatabaseServices.DBObject
    Autodesk.AutoCAD.DatabaseServices.SymbolTableRecord
        Autodesk.AutoCAD.DatabaseServices.RegAppTableRecord

Public Class RegAppTableRecord
Inherits SymbolTableRecord

public class RegAppTableRecord : SymbolTableRecord;