ftype

In computing, ftype is a command-line utility on Microsoft Windows which lists all Registry keys in HKEY CLASSES ROOT which contain the shell\open\command subkey, and prints out the REG SZ contents of the (default) value within these keys. It is an internal command built into cmd.exe; there is no FTYPE.EXE.

Because (default) values in HKEY_CLASSES_ROOT\<keyname>\shell\open\command contain information on how to open file types with registered extensions, this command essentially lists all registered file types, and which executables are used to open them, along with any switches used by the executable.^[1]

References

↑ "Ftype".

Windows command-line programs and shell builtins

COMMAND.COM Command Prompt Windows PowerShell Recovery Console

File system navigation	cd (chdir) dir popd pushd tree

File management	attrib cacls cipher compact copy del (erase) deltree expand icacls makecab md (mkdir) move rd (rmdir) recover ren (rename) replace rmdir robocopy xcopy

Disk management	chkdsk convert defrag diskcomp diskcopy diskpart fdisk format label subst scandisk sys vol vssadmin

Processes	exit kill powercfg runas sc shutdown start taskkill tasklist

Registry	assoc ftype reg regini regsvr32

User environment	date mode path set setx time title ver whoami

File contents	comp edit edlin fc find findstr print type

Scripting	choice clip cscript doskey echo for goto if more pause prompt rem

Networking	arp getmac hostname ipconfig net use netsh netstat nslookup PathPing ping route tracert

Maintenance and care	driverquery msiexec ntbackup sfc systeminfo w32tm WBAdmin winsat wmic

Boot management	bcdedit bootcfg fixboot fixmbr

Software development	debug exe2bin QBasic

Miscellaneous	cls help

List of DOS commands Environment variables

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