pub unsafe extern "system" fn MsiQueryFeatureStateExA(
    szproductcode: PCSTR,
    szusersid: PCSTR,
    dwcontext: MSIINSTALLCONTEXT,
    szfeature: PCSTR,
    pdwstate: *mut INSTALLSTATE
) -> u32
Expand description

Required features: "Win32_System_ApplicationInstallationAndServicing"