The solution in this case was more simple than I could imagine. For some reason I don'know there are two firebird folders, one inside the "c:\program files" folder and another one inside the "c:\program files(x86)" one, even if I was sure to have used the default directory of the installation program (the x86 one)...anyway, while checking installed services, I found that Firebird was launched from c:\program files" path insted the supposed x86...once modified the aliases.conf file in that path everything worked fine. Thanks to you all for you support, hope you don't wasted too much time trying to help me

--- In firebird-support@yahoogroups.com, André Knappstein <Knappstein@...> wrote:
>
> That should be "not even when you are administrator and run it",
> excuse the wrong wording, please.
>
> You can of course right-click/run as administrator, but then you can't
> open the file directly but first need to "File|open" and navigate to
> it, which to me is more complicated than just saving elsewhere and
> copying later.
>
> You can of course also change registry so that Notepad always runs as
> administrator, but that simply defeats an otherwise useful security
> feature.
>
> > On Fri, 31 May 2013 12:10:27 +0200, André Knappstein
> > <Knappstein@...> wrote:
> >>
> >> It is probably good to know that Notepad.exe does never have the
> >> permission to write into a protected directory, not even when it is
> >> run as administrator.
> >>
>
> > Since when? Running Notepad with "Run as Administrator" works just fine for
> > editing files under "C:\Program Files" on Windows 7 and Windows Vista. You just
> > need to open file in Notepad after starting Notepad with "Run as Administrator".
>
>
>
>
> mit freundlichen Grüßen,
>
> André Knappstein
> EDV und Controlling
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