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Articles / Desktop Programming / MFC
Posted 8 Feb 2000


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Display Loaded Modules v1.5

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4.91/5 (16 votes)
8 Feb 2000
A Debugging Tool for Application using Multiple DLLs
  • Download demo project - 110 Kb
  • Download project source files - 134 Kb

    Sample Image - DisplayLoadedModules.jpg

    Have you ever experienced an error while loading a DLL when you start an application? Invalid DLL version? Entry point @XXXX not found?

    If the answer is yes, then this application is for you!

    On you LAN, there may be thousands of versions of a DLL! Which version are you using? Which DLL has effectively been loaded by your application? You must check the PATH, the current working directory of your process, etc...

    This small application, called "DisplayLoadedModules", connects to a running process, gets the list of DLLs loaded by the process, and displays the following information for every DLL:

    • Module File Path (e.g. "C:\WINNT4\System32\WS2_32.dll")
    • Module Description (e.g. "Windows Socket 2.0 32-Bit DLL")
    • Module File Version (e.g. "4.00")
    • Associated Product Name (e.g. "Microsoft(R) Windows NT(TM) Operating System")
    • Associated Product Version (e.g. "4.00")
    • Module File Size (e.g. "59664 bytes")
    • Module Creation Date (e.g. "October 14, 1996 03:38:00")

    The application can also save the output to a text file. If your application runs on a machine "A" and not on a machine "B", you can compare (using 'diff' or 'windiff') the output of the program on both machines. If you're experiencing a DLL version problem, you'll figure out very easily...

    On Windows NT, the executable uses two additional DLLs/Lib: PSAPI.DLL and PDH.DLL For more on these APIs, please refer to MSDN Platform SDK:

    On Windows 98, the executable uses the ToolHelp32 library. For more on this APIs, please refer to MSDN Platform SDK:

    Note that you must select the proper WIN32 Configuration to build the executable:

    • On Windows 98: select configuration Win32 Windows 98 Debug or Win32 Windows 98 Release
    • On Windows NT: select configuration Win32 Windows NT Debug or Win32 Windows NT Release
  • License

    This article has no explicit license attached to it but may contain usage terms in the article text or the download files themselves. If in doubt please contact the author via the discussion board below.

    A list of licenses authors might use can be found here


    About the Author

    Emmanuel Kartmann
    Web Developer
    France France
    Fell into computer software at the age of 11, founder of 3 startups, and now manager of an independent software vendor (ISV) labelled proSDK ( And still a freeware writer and technical article author!

    Comments and Discussions

    QuestionDLL trace back! Pin
    WillianBR3-Apr-08 8:21
    MemberWillianBR3-Apr-08 8:21 
    Generalvc++ code Pin
    Member 47372313-Jul-03 21:39
    MemberMember 47372313-Jul-03 21:39 
    Generaldll messages Pin
    salah_gis18-Dec-02 4:46
    Membersalah_gis18-Dec-02 4:46 
    GeneralRe: dll messages Pin
    Vitali Halershtein6-Oct-03 22:43
    MemberVitali Halershtein6-Oct-03 22:43 
    GeneralLatest SDK library installed, but program still doesn't work. Pin
    WREY1-Jul-02 11:22
    MemberWREY1-Jul-02 11:22 
    QuestionHow to unload.... Pin
    17-Mar-02 15:38
    suss17-Mar-02 15:38 
    Generalvery useful tool, but small Win2000 bug Pin
    joan29-Jun-00 0:40
    Memberjoan29-Jun-00 0:40 
    GeneralDepends use only a heuristic ... Pin
    Christian Rodemeyer14-Feb-00 23:28
    professionalChristian Rodemeyer14-Feb-00 23:28 
    GeneralAlternatively ... Pin
    Member 268610-Feb-00 2:50
    MemberMember 268610-Feb-00 2:50 
    GeneralRe: Alternatively ... Pin
    AlexanderK25-Sep-00 1:52
    MemberAlexanderK25-Sep-00 1:52 
    GeneralRe: Alternatively ... Pin
    Firas Nizam26-May-01 13:29
    MemberFiras Nizam26-May-01 13:29 
    GeneralRe: Alternatively ... Pin
    GDaniel25-Mar-02 1:13
    MemberGDaniel25-Mar-02 1:13 

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