You can also explore the namespaces in files– either those that come with the runtime or those created by yourself or others - using the command-line IL disassembler tool to create a Windows output, for example:
C:\WINNT\ComPlus\v2000.14.1807>ildasm System.Net.dll
produces the following display:
Each of the namespace nodes represents a separate namespace, which can be expanded to explore the class objects and their methods and properties.