Win32 API in C++ to see if a particular KB is installed

Question

I wanted to find out if a particular KB is installed or not and also if it is applicable to the installed windows version. I have tried Windows Update Agent API but that doesn't give a complete list of installed patches which I get using "wmic qfe get hotfixid". Now I dont want to call wmic from within c++ code and was looking for Win32 APIs which can get this information for me.

Answer 1

You can call WMI in C++ : Example: Creating a WMI Application
To get the KB list, you replace the query by :

SELECT * FROM Win32_QuickFixEngineering