pub unsafe fn MsiEnumClientsExW<P0, P1>(
szcomponent: P0,
szusersid: P1,
dwcontext: MSIINSTALLCONTEXT,
dwproductindex: u32,
szproductbuf: Option<&mut [u16; 39]>,
pdwinstalledcontext: Option<*mut MSIINSTALLCONTEXT>,
szsid: PWSTR,
pcchsid: Option<*mut u32>
) -> u32