Using the power of COM interop, you can write code in VB.Net or C# and use it in PHP, VB6, or any other language that can access COM. In this article Jayesh shows us how.The .NET Framework is a new computing platform that simplifies application development in the highly distributed environment of the Internet. The .NET Framework is designed to provide a consistent object-oriented programming environment, a code-execution environment that minimizes software deployment and versioning conflicts, which guarantees safe execution of code and to build all communication on industry standards to ensure that code based on the .NET Framework can integrate with any other code.
An assembly is the primary building block of a .NET Framework application. It is a collection of functionality that is built, versioned, and deployed as a single implementation unit containing one or more files. Each assembly contains an assembly manifest.