When invoked, the function performs a specific sequence of actions:
: This refers to a "Window Handle." It signifies that the function expects to be linked to a parent user interface window, often to display a confirmation prompt or progress bar during the installation. Common Usage via Rundll32 cryptextdll cryptextaddcermachineonlyandhwnd work
: This is an exported function within the DLL. Its name suggests it adds a certificate ( AddCer ) specifically to the Local Machine store ( MachineOnly ) rather than the Current User store, and it uses a window handle ( Hwnd ) to anchor the resulting popup window. How It Works in Windows When invoked, the function performs a specific sequence
CryptExtAddCERMachineOnlyAndHwnd is a fascinating artifact of Windows cryptographic history. It offers a convenient, UI-driven method to import certificates directly into the local machine store — something that normally requires multiple steps or elevated API calls. cryptextdll cryptextaddcermachineonlyandhwnd work