Note that even if the function is present, it may be a stub that just returns an error code such as ERROR_CALL_NOT_IMPLEMENTED. Use the pointer returned by GetProcAddress to call the function. Then call the GetProcAddress function to determine whether the function of interest is present in the DLL. To test for the presence of a function in a system DLL, call the LoadLibrary function to load the DLL.

You can test for the presence of the functions associated with a feature.The following list discusses some common techniques for feature detection: To determine the best way to test for a feature, refer to the documentation for the feature of interest. Rather than using the Version API Helper functions to determine the operating system platform or version number, test for the presence of the feature itself. This is because the operating system may have had new features added in a redistributable DLL. Identifying the current operating system is usually not the best way to determine whether a particular operating system feature is present. To manifest your applications for Windows 8.1 or Windows 10, refer to Targeting your application for Windows. Applications not manifested for Windows 8.1 or Windows 10 will return the Windows 8 OS version value (6.2).

* For applications that have been manifested for Windows 8.1 or Windows 10. The following table summarizes the most recent operating system version numbers. For more information, see Getting the System Version. The Version API Helper functions are used to determine the version of the operating system that is currently running.

Most recent windows version