Registry key to turn off "Hide file extensions"

When the user installs Windows, Bill Gates and Microsoft, in their infinite wisdom, hides file extensions from the user when the user opens "My Computer" and opens a folder.

I know how to "show file extensions", but as a programmer, I want to change this setting from "hide" (the default) to "show" file extensions for all files within my applications.

My development language is Delphi.   I'm not after any Delphi code.  All I want is the Registry key that is responsible for toggling this option on/off.... e.g., HKEY_LOCAL_MACHINE\SOFTWARE\DoThis\ThisKey
KapustaAsked:
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CrazyOneConnect With a Mentor Commented:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
HideFileExt


The Crazy One
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CrazyOneCommented:
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\Advanced
HideFileExt


The Crazy One
0
 
CrazyOneCommented:
Sorry for the double post. It is a boolean

0 = show file extensions
1 = hide file extensions
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