vista file types

remove association

 utility  to unassociate file types in Windows Vista

Ftype

Displays or modifies file types used in file name extension associations. Used without parameters, ftype displays the file types that have open command strings defined.

Syntax

Ftype [FileType[=[OpenCommandString]]]

 Top of page

Parameters

FileType   : Specifies the file type you want to display or change.

OpenCommandString   : Specifies the open command to use when opening files of this type.

/?   : Displays help at the command prompt.

 Top of page

Remarks

• Within an OpenCommandString, ftype substitutes the following variables:
  • %0 or %1 are replaced with the file name that you want to open.
  • %* is replaced with all of the parameters.
  • %~ n is replaced with all of the remaining parameters, starting with the nth parameter, where n can be any number from 2 to 9.
  • %2 is replaced with the first parameter, %3 with the second, and so on.

 Top of page

Examples

To display the current file types that have open command strings defined, type:

ftype

To display the current open command string for a specific file type, type:

ftype FileType

To delete the open command string for a specific file type, type:

ftype FileType=

Type:

ASSOC .pl=PerlScript FTYPE PerlScript=perl.exe %1 %* 

To invoke the Perl script, type:

script.pl 1 2 3 

To eliminate the need to type the extensions, type:

set PATHEXT=.pl;%PATHEXT% 

To invoke the Perl script, type:

script 1 2 3