Printer Friendly
The Free Dictionary
990,599,840 visitors served.
?
Dictionary/
thesaurus
Medical
dictionary
Legal
dictionary
Financial
dictionary
Acronyms
 
Idioms
Encyclopedia
Wikipedia
encyclopedia
?

double extension

   Also found in: Wikipedia 0.04 sec.

A way to trick users into opening a virus. Many people have learned that text files (.TXT) and image files (.GIF, .JPG, etc.) are safe to launch because they are data and not executable software. They have learned to be leery of .EXE, .VBS and other extensions that are executed immediately. Thus, virus writers try to trick more people using double extensions, so "I LOVE YOU.TXT.vbs" is really not a .TXT file, but a .vbs file, a Visual Basic Script that is executed immediately.

You Need to See the Extension
Some mail programs may actually remove the .vbs at the end of the name, leaving users completely helpless to make a determination even if they knew what to look for. This mentality is pervasive. Out of the box, Windows defaults to hiding file extensions in all displays, which is beyond absurdity considering the importance of this file identifier in everyday operations. See dangerous extensions and Love bug.


?Page tools
Printer friendly
Cite / link
Email
Feedback
? Mentioned in ? References in periodicals archive
 
If a taxpayer opts for the double extension Lifo method, one difficulty it faces stems from having to retain antiquated files of base year costs for all inventory items.
The taxpayer requested a change in accounting method in fiscal year 2, and was granted permission to use a single pool as well as the double extension method of accounting for its LIFO inventory.
Attachments names have an extension of EXE, COM, PIF or SCR and may be combined with INI to give a double extension of INI.
 
Encyclopedia browser? ? Full browser
 
 
Encyclopedia
?

Disclaimer | Privacy policy | Feedback | Copyright © 2008 Farlex, Inc.
All content on this website, including dictionary, thesaurus, literature, geography, and other reference data is for informational purposes only. This information should not be considered complete, up to date, and is not intended to be used in place of a visit, consultation, or advice of a legal, medical, or any other professional. Terms of Use.