There is only one file type that uses the .NCB extension:
Visual C++ IntelliSense Database
Symbols file used by Visual C++, a component of Microsoft's Visual Studio development software; contains information about different symbols used in a C++ software project, such as user-defined classes.
NCB files are used by IntelliSense, a Visual Studio component that intelligently provides recommendations while developing source code (i.e., code autocompletion).
|Microsoft Visual Studio||Commercial|
Updated: May 26, 2010