.NET Framework – In Short

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An application software platform from Microsoft, introduced in 2002 and commonly called .NET (“dot net”). The .NET platform is similar in purpose to the Java J2EE platform, and like Java’s JVM runtime engine, .NET’s runtime engine must be installed in the computer in order to run .NET applications. .NET supports SOAP-based Web services as well as Microsoft’s legacy Component Object Model.
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COM (Component Object Model)

(Component Object Model) A component software architecture from Microsoft, which defines a structure for building program routines (objects) that can be called up and executed in a Windows environment. This capability was built into Windows 95/98 and Windows NT 4.0. Parts of Windows itself and Microsoft’s own applications are also built as COM objects. COM provides the interfaces between objects, and Distributed COM (DCOM) allows them to run remotely. COM is used in the following ways.

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About Macros

If you perform a task repeatedly in Microsoft Excel, you can automate the task with a macro. A macro is a series of commands and functions that are stored in a Microsoft Visual Basic module and can be run whenever you need to perform the task. For example, if you often enter long text strings in cells, you can create a macro to format those cells so that the text wraps.
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