Use of unicode in forms 10g

Can anyone guide through steps to use unicode in forms 10g.
i have set computer environment variable NLS_LANG.
and settings in default.env and nls_lang in regedit all to 'AMERICAN_AMERICA.UTF8 '

Thanks Billy.
Yes you are right.
Here why I discarded that option is,
I may get the source files with changing layouts.
My Actual scenario is as follows.
Initially we developped all the things using PL/SQL packages. Its working fine.
But as per the inputs we received from requirements group, the file structure changes dynamically. and we would able to consider those new columns also. We should be able to changes the rules dynamically.
Lets say, we doing fullouter join on Src_A and Src_B. on columns col1_A and col1_B.
Now the requirement changes in a way that, the join should be done on Src_A and Src_C. on columns col1_A and col_C.
For this I need to define a new package.
Instead of that, I would like to do everything dynamically based on configuration parameters given as input.
Thank you,
Regards,
Gowtham Sen

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Use of unicode in forms 10g

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