[metapost] MPtoPDF problem with LatexMP package?

[Maurizio]

Hans Hagen wrote:
> does mptopdf --latex work?

No, in any case I get the following output (the name of my source file 
is test.mp)

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

 TeXExec 5.4.3 - ConTeXt / PRAGMA ADE 1997-2005

              metapost : test
                format : metafun
(test.mp (C:\texmf\metapost\latexmp\latexmp.mp) 
(ltx-test.tmpC:\texmf\miktex\bin
\mpto.exe "C:\Documenti\maurizio\MP\ltx-test.tmp" >> 
"C:\WINDOWS\TEMP\mpxE44A.TMP\mpx314.tex"
tex.exe C:/WINDOWS/TEMP/mpxE44A.TMP/mpx314.tex
This is TeX, Version 3.141592 (MiKTeX 2.4)
(C:/WINDOWS/TEMP/mpxE44A.TMP/mpx314.tex
! Undefined control sequence.
l.2 \documentclass
                  [10pt]{article}
?

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%


Thanks,
Maurizio