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VC 6++/VS 2008 Express/VS 2008 Problem

Discussion in 'Win32' started by Din Attarwala, Aug 9, 2008.

  1. Din Attarwala

    Din Attarwala New Member

    I have an appl in VC 6++ that I have ported from my old m/c to VISTA..
    On my laptop, I have installed VC++ 6, vs 2008 Exp, VS2008 Std version. I have not been able to successfully compile and link my appl in VS 2008 Exp/VS 2008 Std because of the problem relating to not able to find mfc42d.lib. So, instead I continue to use VC++ 6 for the time being. This was working fine and now for no apparent reason I am getting this error when I build my appln.
    mfco42d.lib(MFCO42D.DLL) : error LNK2001: unresolved external symbol MFCO42D_NULL_THUNK_DATA
    Debug/Process.exe : fatal error LNK1120: 1 unresolved externals
    Error executing link.exe.

    Process.exe - 2 error(s), 0 warning(s)

    So now I have two problems:
    1.0 Unable to switch over to VS2008 because of mfc42d.lib not found
    2.0 work around with VC++ 6 is now no good because of a new problem

    Will greatly appreciate help. I know there is a great deal of experience on this in the forum.

    Many thanks in anticipation.
  2. Cosmic_egg

    Cosmic_egg New Member

    Trying linking to different library instead of mfco42d.lib
    Just search for file of name mfco*.lib
    Linking to a correct library should solve the problem.
  3. Cosmic_egg

    Cosmic_egg New Member

    Usually moving from lower version to higher has some problem but in my experience latest/correct version of library should solve the problem
  4. Din Attarwala

    Din Attarwala New Member

    Thanks for your reply.

    I am still getting this problem.
    1>------ Build started: Project: Process, Configuration: Debug Win32 ------
    1>LINK : fatal error LNK1104: cannot open file 'mfc42d.lib'
    1>Build log was saved at "file://c:\Visual2008FTADev\Process\Debug\BuildLog.htm"
    1>Process - 1 error(s), 0 warning(s)
    ========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========
    when I try to build my appl in VS2008.

    I will greatly appreciate it if you can give a more specific steps guidance as to how to remove the reference to the offending file 'mfc42d.lib'.


    However, I will greatly appreciate a little more detail on how to find reference to
  5. Cosmic_egg

    Cosmic_egg New Member

    Just right click on your project, go to settings/properties ....see linker setting....see the linked libraries....if mfc42d.lib is there in libraries to link to. remove it from there.....just look for mfc42d.lib in you project setting, i do not have vc 6 now else i would have told you the exact.....
    I think this might be the solution....
  6. Din Attarwala

    Din Attarwala New Member

    Thanks to Cosmic_egg for last reply. That really helped.
    I had a number of thrid party .libs that I was linking to. Once, I rebuild these .lib under VS2008, the problem relating to LINK : fatal error LNK1104: cannot open file 'mfc42d.lib'
    was resolved and now I am able to load my project and work with VS 2008.

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