Manage Windows Short File Extensions (Windows NT/2000/XP)

Windows evaluates file extensions on the first three characters, therefore 'filename.html' is actually treated as 'filename.htm'. Therefore if you use a command such as 'del *.htm' to delete all the '.htm' files, you will also delete all '.html' files as well.

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To turn this setting off, editing the key found below and set the value of 'Win95TruncatedExtensions' to '0', to turn the feature back on, set the value back to '1'.

		(Default)	REG_SZ	(value not set)
		Win95TruncatedExtensions	REG_DWORD	0x00000000 (0)

	HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSyst...

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Disclaimer: Modifying the registry can cause serious problems that may require you to reinstall your operating system. We cannot guarantee that problems resulting from modifications to the registry can be solved. Use the information provided at your own risk.