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FTYPE
Display or change the link between a fileType and an executable
program
syntax FTYPE [fileType]=[executable_path]
FTYPE FTYPE [fileType] FTYPE [fileType]= key fileType : The type of file executable_path : The executable program including any command line parameters
More than one file extension may be associated with the same
File Type.
e.g. both the extension .JPG and the extension .JPEG may be associated with
the File Type "jpegfile"
File Types can be displayed in the Windows Explorer GUI: [View, Options, File
Types] however the spelling is usually different to that expected by the FTYPE
command e.g. the File Type "txtfile" is displayed in the GUI as "Text
Document"and "jpegfile" is displayed as "image/jpeg"
Several FileTypes can be linked to the same executable application, but
one FileType cannot be linked to more than one executable application.
FTYPE file type will display the current executable program for that
file type.
FTYPE without any parameters will display all FileTypes and the executable program
for each.
Defining command line parameters
It is almost always necessary to supply command line parameters so that when
a document is opened not only is the relevant application loaded into memory
but the document itself also loaded into the application. To make this happen
the filename of the document must be passed back to the application.
Command line parameters are exactly like batch file parameters, %0 is the executable
program and %1 will reference the document filename
so a simple command line might be:
MyApplication.exe "%1"
If any further parameters are required by the application they can be passed
as %2, %3. To pass ALL parameters to an application use %*. To pass all the
remaining parameters starting with the nth parameter, use %~n where n is between
2 and 9.
The FileType should always be created before making a File Association
For example:
FTYPE htmlfile="C:\PROGRA~1\Plus!\MICROS~1\iexplore.exe" -nohome
ASSOC .html=htmlfile
FTYPE pagemill.html=C:\PROGRA~1\Adobe\PAGEMI~1.0\PageMill.exe "%1"
ASSOC .html=pagemill.html
FTYPE rtffile="C:\Program Files\Windows NT\Accessories\WORDPAD.EXE" "%1"
ASSOC .rtf=rtffile
FTYPE word.rtf.8="C:\Program Files\Microsoft Office\Office\winword.exe" /n
ASSOC .rtf=word.rtf.8
Switching a File Association between multiple applications
If you have multiple applications that use the same file extension, the ASSOC
command can be used to switch the file extension between the different FileTypes.
Deleting a FileType
Specify executable_path=nothing and the FTYPE command will delete the
executable_path for that FileType.
For example:
FTYPE htmlfile=
Backing up your FileTypes
FTYPE >backup_types.txt
ASSOC >backup_ext.txt
Restoring your FileTypes from a Backup
FOR /F "tokens=* delims=" %G IN (backup_types.txt) DO
FTYPE %G
FOR /F "tokens=* delims=" %G IN (backup_ext.txt) DO ASSOC %G
This will recreate the CLASS id's in the registry at HKey_Classes_Root\.<file
extension>
If you put the commands above in a batch file change the %G to be %%G
Using File associations at the command line
If you have a file association between .DOC and Word for Windows then at a command
prompt you can open a document with any of the following commands:
Start "My Document.doc"
"Monthly Report.doc"
JULY.DOC
note that the file extension must be supplied for this to work
Related Commands:
ASSOC - Change file extension associations
Batch file to list the application associated with
a file extension
ASSOCIAT - One step file association (Resource
Kit)
Equivalent Linux BASH commands:
none