In this course of CPD 228, students will build on the foundation established by Fundamental Visual Basic, CPD 119 and create and manage COM components, create data services, test solutions, deploy applications, and provide maintenance and support of Visual Basic.NET applications.  The focus will be on error-trapping, arrays, random and sequential file manipulation, string manipulations, functions, creating classes and objects, Database access and ADO.NET applications. The prerequisite for this course is CPD 119 and CPD 122.