Vadim,
Thanks for posting the Windows installer.
I installed Maxima + Xmaxima + wxMaxima + Spanish & Portuguese docs.
I accepted default installation options and it worked fine.
run_testsuite => no unexpected errors.
Clicking on highlighted expressions in Xmaxima lower panel does not
paste output into panel (although output shows in interactive session above).
After installing, wxMaxima executed Maxima 5.9.3 (which is also installed
on this Windows machine) instead of 5.9.3.99rc1.
I pointed it to the maxima.bat file in the new installation via the wxMaxima
configuration dialog box and after that it was OK.
The Spanish and Portuguese docs look terrific in the help browser.
Hope this helps,
Robert