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Editorial Team
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Asked: 2026-05-11T18:07:47+00:00

I have an MFC app which is wizard based. The App asks a user

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I have an MFC app which is wizard based. The App asks a user a variable number of questions which are then written to an INI file which is later encrypted when the user clicks Finish.

All the INI file parsers I have seen so far seen read or write to a physical file on Disk. I don’t want to do this as the INI file contains confidential information. Instead I would like the INI file to be only based in memory and never written to disk in an un-encrypted form.

As the app allows users to go back and change answers, It occurred to me that I could use an in memory Database for this purpose but again I do not want anything written to Disk and don’t want to ship a DB with my app if it can be avoided.

I have to use an INI file as it the file when un-encrypted will be processed by a 3rd party.

Any suggestions welcomed.

Thanks..

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1 Answer

  1. Editorial Team

    I have an IniFile C++ class which allows you to work with Ini files in memory:
    http://www.lemonteam.com/downloads/inifile.h

    It’s a short, well documented single .h file. Sample usage:

    IniFile if ( "myinifile.ini" );

if.SetString( "mykey", "myvalue" );


// Nothing gets actually written to disk until you call Flush(), Close() or the object is deleted
if.Flush();
if.Close();

    You should be able to modify the Flush() method so that it applies some kind of encryption to the saved data.

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