Microsoft Visual Studio enables you to quickly build managed, smart client solutions that use Microsoft Office applications ...

      Microsoft Visual Studio enables you to quickly build managed, smart 
      client solutions that use Microsoft Office applications as the user interface. 
      You can design applications that take advantage of the familiar Microsoft 
      Office user interfaces and tools such as the word processing features in 
      Microsoft Word, the data analysis features of Microsoft Excel, and the e-mail 
      management features of Microsoft Outlook.