> Hi, I want to list firebird user. can I do that?

If you mean the instance-wide available Firebird users, then either use
the Services API or gsec.

What development environment, access components etc. do you use?



--
With regards,
Thomas Steinmaurer (^TS^)
Firebird Technology Evangelist

http://www.upscene.com/
http://www.firebirdsql.org/en/firebird-foundation/