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COM Interop

The Component Object Model (COM) allows an object to expose its functionality to other components and to host applications. Most of today's software includes COM objects. Although .NET assemblies are the best choice for new applications, you may at times need to employ COM objects. This section covers some of the issues associated with creating and using COM objects with Visual Basic .NET.

In This Section

Introduction to COM Interop
Provides an overview of COM interoperability.
Referencing COM Objects from Visual Basic .NET
Covers how to add references to COM objects that have type libraries.
Working With ActiveX Controls
Demonstrates how to use existing ActiveX controls to add features to the Visual Studio .NET toolbox.
Walkthrough: Creating COM Objects with Visual Basic .NET
Steps you through the process of creating COM objects with and without the COM class template.
Troubleshooting Interoperability
Covers some of the problems you may encounter when interoperating with COM.

Related Sections

Walkthrough: Implementing Inheritance with COM Objects
Demonstrates how to use classes in COM objects as the basis for inheritance in Visual Basic .NET.
Interoperating with Unmanaged Code
Describes interoperability services provided by the common language runtime.
Exposing COM Components to the .NET Framework
Describes the process of calling COM types through COM interop.
Exposing .NET Framework Components to COM
Describes the preparation and use of managed types from COM.
Applying Interop Attributes
Covers attributes you can use when interoperating with unmanaged code.
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