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Editorial Team
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Asked: 2026-05-27T13:33:27+00:00

Sometimes, I read the source code, found that the module is loaded manually like

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Sometimes, I read the source code, found that the module is loaded manually like below.

HMODULE hmodMscoree = LoadLibraryEx(L"mscoree.dll", NULL, 0);
typedef HRESULT (STDAPICALLTYPE *GETCORVERSION)(LPWSTR szBuffer, DWORD cchBuffer, DWORD* dwLength);
 GETCORVERSION pfnGETCORVERSION = (GETCORVERSION)GetProcAddress(hmodMscoree, "GetCORVersion");

Why does it load the mscoree.dll at runtime?

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1 Answer

  1. Editorial Team

    One advantage is that if you load a DLL dynamically, then the presence of a DLL (e.g. mscoree.dll), and the presence of a function in the DLL (e.g. GetCORVersion in mscoree.dll) will be checked only when the application tries to load the DLL and call the function, respectively. If the DLL is missing, or one of its function is missing because you only have an older version, then there won’t be any problem in cases when the application does not use this functionality. On the contrary, if the DLL is statically linked, and it is missing, then the application simply won’t start (you will get an error message).

    Example: we have a complex industrial measurement software, which links wpcap.dll dynamically. In cases when the measurement does not include packet sniffing, we do not have to install WinPcap.

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