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* Description: Knowledge of Windows operating system registry
* Compatiablity: RDBMS 11g, 12c
* Date: 11:36 PM EST, 03/29/2017
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<1> Windows Registry Analogy:
     |
     |__ Simply speaking, registry is like DNA of Windows operating system. The Registry is a hierarchical database that stores low-level settings 
     |   for the Microsoft Windows operating system and for applications that opt to use the Registry. The kernel, device drivers, services, Security 
     |   Accounts Manager (SAM), and user interface can all use the Registry. The Registry also allows access to counters for profiling system performance.
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     |__ Basically, Windows registry is the configuration file contains KEY/VALUE pair for application.
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     |__ But, not all Windows application use registry, such as .NET framework application usually use XML format files to contains configuration information.
     |   If an application without MSWIN registry, we can call it a "Portable" application.	 
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     |__ CMD> regedit .......... Open Windows Registry