Why do you think you can't use just v2.5 client ?

isn't  supported from Zeoslib for Delphi 5 :(

  What problem do you have ?

I case of error using the fbclient21.dll (2.1 version), I obtain a "Can't format message" because the firebird.msg is for 2.5 version". The application that use 2.5 version works fine.

But you better should not put non-system files into Windows system folder

Ok.

  Choose any folder you like, put firebird.msg there and set environment variable
FIREBIRD_MSG pointing to this folder. You should set it before you'll load fbclient.dll.

In this case, I have conflict with version 2.5 (in this case nt works fine the 2.5 version) because environment variable is in system scope. Is there a way to set an environment variable in scope only for application that set it?

Thanks.

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Luigi Siciliano
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