Visual Studio .NET

Visual Studio is a complete set of development tools for building ASP.NET Web applications, XML Web Services, desktop applications and mobile applications. Visual Basic, Visual C++, Visual C# and Visual J# all use the same integrated development environment (IDE), which allows them to share tools and facilitates in the creation of mixed-language solutions. In addition, these languages leverage the functionality of the .NET Framework, which provides access to key technologies that simplify the development of ASP Web applications and XML Web Services
Visual Studio .NET is a single comprehensive development tool for creating the next generation of applications.
Our developers can use Visual Studio .NET to:

• Build the next-generation Internet.
• Create powerful applications quickly and effectively.
• Span any platform or device.
• Integrate with any SharePoint application

Visual Studio .NET is a development environment built from the ground up which enables integration through XML Web services. By allowing applications to share data over the Internet, XML Web services enable developers to assemble applications from new and existing code, regardless of platform, programming language, or object model.

Microsoft's Visual Studio site.