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Editorial Team
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Asked: 2026-06-01T06:13:40+00:00

Is there a tool that can check a DLL against a specific API Level?

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Is there a tool that can check a DLL against a specific API Level? We have run into problems with a DLL from an external Developer that does not work under Windows 2000 and now we are trying to find all Windows API calls that do not exist in Win2k.

Is there something like that?

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1 Answer

  1. Editorial Team

    That’s not how it works. You have to specify what OS support you require when you build the DLL. 

    #define _WIN32_WINNT 0x0500  // supporting Windows 2000
#include <windows.h>
// etc...

    You’ll get a compile error when you try to use an api function that isn’t available.

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