ZFD6.5 with middletier on w2k3 and netware 6.5, ZFD on Netware 6.5 -Server

on Client ZFDAgent 6.5 SP1

i must set a value in a .ini-file on my clients with the username of the
logged in user when starting a special applikation

with installed netwareclient i can use the %login_name% or %NWUSERNAME%
an all things are fine

now without netwareclient it dont work

the value in the ini is set now to %NWUSERNAME" or %login_name%

%USERNAME% also dont work

How can i set the value username in a ini-file without nwclient on the