> I launch my application with :
> java -classpath "%javadir%\lib\firebirdSQL\firebirdSQL-full.jar" ...

And there is nothing in %javadir%\jre\lib\etx ? Can you send me the output
of the "dir %javadir% /S > javadir_files.txt"?

> where firebirdSQL-full.jar is from "FirebirdSQL-1.5.0RC3JDK_1.4.zip"

Can you send it to me, exactly this file?

Roman