Function VerInstallFileW 

pub unsafe extern "C" fn VerInstallFileW(
    uFlags: DWORD,
    szSrcFileName: LPWSTR,
    szDestFileName: LPWSTR,
    szSrcDir: LPWSTR,
    szDestDir: LPWSTR,
    szCurDir: LPWSTR,
    szTmpFile: LPWSTR,
    lpuTmpFileLen: PUINT,
) -> DWORD