3,977 questions
Microsodt Foundation Class v4.21
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(204.8, 99%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EHD%3C/text%3E%3C/svg%3E)
Hanumesh Desai
26
Reputation points
Hi,
Greetings!
I have a question on MFC (Microsoft Foundation Class) currently I am reverse engineering the C++ code which was developed in 1998. The code is incorporated with 4.21 version of MFC Library.
Now we have built the code in Microsoft Visual Studio 2019 Professional Edition (Version: 16.11.22).
Right now the Executable is Crashing when we try to access some functions, it says MFC version should not be Newer than 4.21.
Please help me how to make MFC Library to support for the current version.
Thank you,
Hanumesh
Developer technologies | C++
{count} votes
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(92.8, 12%, 18%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EDL%3C/text%3E%3C/svg%3E)
David Lowndes 4,726 Reputation points2022-12-19T12:30:10.103+00:00 You'll need to supply more details.
I suspect you might have a DLL build with the older version that you've not rebuilt with the newer tools - but I'm only guessing. -
Hanumesh Desai 26 Reputation points
2022-12-20T14:32:20.637+00:00 Hi David,
Yes the code i have now is built with older version of DLL.
Now i am trying to rebuild and incorporate with current version of DLL. -
David Lowndes 4,726 Reputation points
2022-12-20T14:37:05.257+00:00 Yes, rebuild all your component DLLs that depend on MFC with the same version of the tools. Hopefully that'll solve your issue.
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Hanumesh Desai 26 Reputation points
2022-12-20T14:48:10.647+00:00 Now I have rebuilt my code and generated the executable, the problem is it is Decades old code and it has 4.21 Version of MFC Library, in Visual Studio 2019 version 4.21 MFC Library is not available.
Please suggest how to cater 4.21 version of MFC to make it to work. -
Viorel 122.6K Reputation points2022-12-20T15:12:00.807+00:00 Maybe the old code can be compiled using the current version of MFC. Did you receive some compilation errors?
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Hanumesh Desai 26 Reputation points
2022-12-20T16:25:49.893+00:00 Thanks much David :)
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(201.6, 57.00000000000001%, 29%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EMY%3C/text%3E%3C/svg%3E)
Minxin Yu 13,506 Reputation points Microsoft External Staff2022-12-22T01:39:37.077+00:00 Did David's comment solve your problem?
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