FILExt - The File Extension Source

Details for file extension .IDENTIFIER are on this page. Because there is no central registry for file extensions and their associated programs there may be multiple entries on this page. And, because there are many (some say over a million) such associations not all may be listed here.

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Windows can't open .IDENTIFIER files?
If Windows is unable to open files with the extension .IDENTIFIER you may not have the appropriate program installed or, you may have registry errors. To help, we strongly recommend you run this free registry scan.

A search on the file extension you submitted shows 1 record(s). The details for each of these are shown below. The best FILExt can do for you is provide the details we know about. Selecting the information that applies to your particular situation is up to you. Use any hints provided. If the information here is not helpful, FILExt is sorry; but as a research site FILExt cannot provide personal support. If you need further information you might try the research tips on the FILExt Help Me page.

Extension: IDENTIFIER
Program and/or Extension Function [What's This?]		Company [What's This?]
Internet Explorer Zone Identification Information		Microsoft Corporation
Specific Notes [What's This?]
You won't normally see this file extension and if you do it should be attached to a filename with a colon and "zone" before it (e.g., FILENAME.DPC:ZONE.IDENTIFIER). This type of file name might be revealed by a rootkit identification program. When you use Internet Explorer to download a file that can have executable content (.DOC files, for example, can have executable macros in them) IE adds an NTFS Alternate Data Stream named ZONE.IDENTIFIER to the file. The ADS subsystem allows additional data to be linked to a file. The additional data, however, is not always apparent to the user. If you open a Command Prompt window, navigate to the folder containing the file, and command MORE < FILENAME.DOC:ZONE.IDENTIFIER (substitute the name of the file for FILENAME.DOC in the command) then you should see the contents of the ADS attachment which should be a couple of lines identifying the assigned Internet Zone when the file was downloaded and saved. If you trust this file you can right click it, select properties, and on the general tab click the unblock button. Recommended: Find IDENTIFIER errors now.
MIME Type [What's This?]	File Classification [What's This?]	Associated Links [What's This?]
	Text	CKNOW Info Page on NTFS ADS
Identifying Characters [What's This?]
(None or Unknown)
Program ID [What's This?]
(None or Unknown)
General Notes [What's This?]
(None)
This is record 19161 last modified on 2006-01-09 and created on 2006-01-09.

General Info

• If the extension you are looking for is of the form .??_ the file is likely a compressed file and part of an install routine. When the install program runs it will expand the file and replace the underscore with the proper letter for the file type.
• If the file is sent as an audio file with any three-character extension it may be a dictation file where the extension is the dictator's initials; playable by BCB Voice Systems software (see ??? extension). The file could likewise be a dictation file in TrueSpeech format. Use Windows Sound Recorder and/or Media Player to play these back.
• If the extension you are looking for has a number at the end or is only a number and there were no results consider entering the same extension format using zero or one as some programs produce numbered split files but when the split can be extensive (e.g., .000-.999) only the first entry is in the database.

Need more information about any entries on this page? Try a Google search using terms in the above information along with words like "format," "convert," "conversion," and even "hacking." A search box is provided here for your convenience.

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