this is what I get in the end of my installation. :shock:
I had to reinstall windows, so I suppose I missed to install something, since everything worked fine before. It is win xp sp2, houdini 8.2.66 (although I tried few releases and it is the same)
Any clues?

Adding Effects
Font Effects is an invalid font (or already installed)
Adding Software/Houdini
Font Software/Houdini is an invalid font (or already installed)
Adding 8.2.66/bin/gfont.exe
Font 8.2.66/bin/gfont.exe is an invalid font (or already installed)
Adding -Sq
Font -Sq is an invalid font (or already installed)
Adding -o
Font -o is an invalid font (or already installed)
Adding CProgram Files/Side Effects Software/Houdini 8.2.66/houdini/fonts/font.index
Font CProgram Files/Side Effects Software/Houdini 8.2.66/houdini/fonts/font.index is an invalid font (or already installed)
Saving font table to: CPROGRA~1/Side Effects Software/Houdini 8.2.66/houdini/fonts/font.index

oh, I did a bit of search and I found the same problem again posted by me ops:
although this time the solution is not the same, why I do not know…
http://www.sidefx.com/index.php?option=com_forum&Itemid=172&page=viewtopic&t=5089&highlight=installation [sidefx.com]

:roll:
well it was firewall… agnitum outpost… making some automatic rule in bckground that blocked some “dll injections” (whatever).. I shut it down, try again and it was ok…

Good to know. Thank's for the follow through.