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Date:	Sat, 3 May 2003 09:29:43 PDT7
From:	Peter Skye <pskye@peterskye.com >
Reply-To:	scoug-help@scoug.com
To:	scoug-help@scoug.com
Subject:	SCOUG-Help: files not found

Content Type: text/plain

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jack.huffman@worldnet.att.net wrote:
>
> I have read that OS/2 uses EA's to store information (like
> INI files do) about the name of the application, type of
> info in a file, icon location in a folder as .TYPE,
> .CLASSINFO, .ICONPOS but that a programmer can put other
> info in a file including what software can update it.

Hi Jack,

Hang onto those EAs when you back up.

Suppose you wrote a program that did word processing but always
encrypted the file on the hard drive.

Then you as the programmer might decide to put the encryption method
into each file's EAs.

You might call the value HUFFMAN.ENCRYPTION and number the various
methods, say "1", "2", "3" etc., and when your program writes the file
to disk it allows you to select the encryption method and then stores
this value in the EAs.

Thus the EAs for any of these files will have the chosen encryption
method coded into the EAs so your program will know how to decrypt the
file.

This is an example of why you might not want to back up to CD and remove
all of the EAs . . .

- Peter

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