pub unsafe fn MsiEnumClientsExA<P0, P1>(
szcomponent: P0,
szusersid: P1,
dwcontext: MSIINSTALLCONTEXT,
dwproductindex: u32,
szproductbuf: Option<&mut [u8; 39]>,
pdwinstalledcontext: Option<*mut MSIINSTALLCONTEXT>,
szsid: PSTR,
pcchsid: Option<*mut u32>
) -> u32