> Sorry, but I think this may be a really newbie question, but I can't
> figure it out myself without installing Firebird on different servers and
> clients, and thought you guys might know the answer with me going to alot of
> trouble.
>
> I am developing an application that will involve installing Firebird on
> either a 64bit or 32bit server, then clients that connect can also be either
> 32bit or 64bit.
>
> My query is this, if Firebird is installed on a 64bit server, if the
> client is 32 bit, then which version of fbclient.dll is required on the pc, 32
> bit or 64 bit?
>
> Does the 32bit dll communicate with the 64 bit server?
>
> Also vice versa, if Firebird is installed on a 32 bit server, and the
> client is 64 bit, which version of the fbclient.dll is required?

A 32 bit client application requires the 32 bit fbclient.dll (even if running on 64 bit OS!), a 64 bit client application requires a 64 bit fbclient.dll. The type of server has nothing to do with this decision, only the client architecture.
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