magnusanger schrieb am 05.06.2012 um 06:22 (-0000):

> I have run a FireBird server for many years. I am currently using the
> version installed via the package "Firebird-2.1.1.17910-0_Win32.exe".
> I now plan to swap to a Windows 2008 64-bit server, and of course need
> to install another version of FireBird.
> I suppose there are no problems whatsoever with the actual FireBird
> installation or conversion of the .FDB databases as such (or restored
> from .fbk backup files).

It would be best to review the compatibility section to make sure none
of the issues mentioned affect your setup, or else take appropriate
action:

http://www.firebirdsql.org/rlsnotesh/rlsnotes25.html#rnfb25-compat

> But what about the client ? I have used the "minimum client
> installation" from the "Firebird-2.1.1.17910-0_Win32.exe" package.
> Would I need to replace the client if the clients still run on
> 32-bit-machines ?

Probably not, but make sure you fully understand this issue (I don't):

http://www.firebirdsql.org/rlsnotesh/rlsnotes25.html#rnfb25-engine-stats64

> If I use a newer FireBird version than 2.1.1 (such as for instance the
> 2.1.4 version, or the 2.5.1 version), would I need to replace the
> client ?

Looks like that's the same question as above.

> If I choose not to update the client (many users, lots of
> administration), is there a 64-bit version available that matches the
> client that is currently distributed, and if so, where can I get hold
> of it ?

Why not get the latest 2.1 version (2.1.4) for Win64 from here? Then you
wouldn't have to worry about 2.1 <> 2.5 issues.

http://firebirdsql.org/en/firebird-2-1/#Win64

Michael