>> DFA file

DFA file format description

Many people share .dfa files without attaching instructions on how to use it. Yet it isn’t evident for everyone which program a .dfa file can be edited, converted or printed with. On this page, we try to provide assistance for handling .dfa files.

1 filename extension(s) found in our database.

.dfa - SecuROM Manual Activation Request.

The DFA file is a SecuROM Manual Activation Request. SecuROM is a controversial CD/DVD copy protection and digital rights management (DRM) product developed by Sony DADC.

Data files
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SecuROM Manual Activation Request. related extensions:
Zoll RescueNet Code Review Data
z-Tree Subject
Finger Minutiae Marker Database
Quicken Online Financial Data
MakeMusic Finale Performance Assessment
Pokemon Gift File

Naturally, other applications may also use the .dfa file extension. Even harmful programs can create .dfa files. Be especially cautious with .dfa files coming from an unknown source!

Can't open a .dfa file?

When you double-click a file to open it, Windows examines the filename extension. If Windows recognizes the filename extension, it opens the file in the program that is associated with that filename extension. When Windows does not recognize a filename extension, you receive the following message:

Windows can't open this file:


To open this file, Windows needs to know what program you want to use to open it. Windows can go online to look it up automatically, or you can manually select one from a list of programs that are installed on your computer.

To avoid this error, you need to set the file association correctly.

The .dfa file extension is often given incorrectly!

According to the searches on our site, these misspellings were the most common in the past year:

cfa, da, daf, dba, dca, dda, dea, df, dfq, dfw, dfx, dra, dta, dva, efa

Is it possible that the filename extension is misspelled?

Similar file extensions in our database:

ComProbe Analyzer Captured Data
GLBasic ASCII Scene Data
Cadence OrCAD Component Footprint
DVDAuthorGUI Project
DarkBASIC Source Code
Chain Calculator Database

Operating systems currently supports the following operating systems:

Windows XP/Vista, Windows 7/8, Windows 10, CentOS, Debian GNU/Linux, Ubuntu Linux, FreeBSD, Mac OS X, iOS, Android

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If you have useful information about the .dfa file format, then write to us!