C:\paulo\sources\UmlautÄ>lualatex teste.tex
This is LuaTeX, Version beta-0.70.1-2011082320 (rev 4277)
restricted \write18 enabled.
(./teste.tex
LaTeX2e <2011/06/27>
LuaTeX adaptation of babel <v3.8l-luatex-1.4> and hyphenation patterns for engl
ish, dumylang, nohyphenation, loaded.
...
Output written on teste.pdf (2 pages, 19571 bytes).