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May be you have FIBPlus ( http://www.devrace.com/en/fibplus/ ) ... it has all the tools and sources necessary to install, uninstall, start, stop Firebird/Interbase and also to get the version of the server and more. In any case, you can get the version from the client driver (fbclient.dll for Firebird). DelphiDabbler ( http://www.delphidabbler.com/software/verinfo/download ) has free sources that get file version of any DLL. You can easily use that.