What is the meaning of each registry key of an installed program and software on my Windows 8 system?

The table explains the meaning of each registry key used for an installed program and software are located in several places:

DisplayName - Program name to be displayed in Control Panel
DisplayIcon - Path name to the icon to be displayed in Control Panel
DisplayVersion - Version value to be displayed in Control Panel
Version - Version value
VersionMajor - Major part of the version value
VersionMinor - Minor part of the version value
Publisher - The publisher who produced the program
SystemComponent - Flag indicating the program is a system component
InstallDate - Installation date in YYYYMMDD format
InstallLocation - Folder location where program files are installed
InstallSource - Folder location where the program was installed from
ModifyPath - Command to run to modify the installation
UninstallString - Command to run to uninstall the program
QuietUninstallString - Command to run to quietly uninstall the program
WindowsInstaller - Flag indicating the program is installed by the Windows Installer
ProductID - Product ID of the program
RegOwner - Registered owner of the program
RegCompany - Registered company of the program
NoModify - Flag indicating that there is no option to modify the installation
NoRepair - Flag indicating that there is no option to repair the installation
NoRemove - Flag indicating that there is no option to remove the installation
Size -
EstimatedSize - Estimated total size in KB of all installed program files
AuthorizedCDFPrefix - 
Comments - Comment describing the installed program
Contact - 
HelpLink - URL to the program support website
HelpTelephone - Telephone number to call for support 
Readme - Path name to the readme file
URLUpdateInfo - URL to the website for program updates
URLInfoAbout - URL to the website for program information
Language - 

⇒ Hidden Installed Programs in Control Panel on Windows 8

⇐ View Registry Keys of Installed Programs on Windows 8

⇑ Uninstall Old or Bad Programs and Software on Windows 8

⇑⇑ Windows 8 Installed Programs