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Registry: HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\FolderDescriptions

The sub-keys of the HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\FolderDescriptions registry key are CLSIDs (?) each of which represents a special folder. All (most?) of these sub keys have a value named name. This value can be used to open the special folder in cmd.exe with the start command by prepending the name with shell:. If the name contains spaces, the shell:name construct needs to be enclosed in quotes. Because quotes have a special meaning for the start command, another pair of quotes needs to be prepended.
C:\> start     shell:Cookies
C:\> start "" "shell:Start Menu"

Category

Each subkey has a Category value which is an integer between 1 and 4.

See also

explorer.exe GUI - This PC
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer

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