Oracle Export charset concern

Hi everyone,
Running Oracle 9i version 9.2.6.0 running on windows server 2003
I have run an export which completed sucessfully WITH warnings.
I figure I am getting this message due to the following line at the top of teh export log
"Export done in WE8MSWIN1252 character set and AL16UTF16 NCHAR character set
server uses WE8ISO8859P1 character set (possible charset conversion)"
What is causing me concern is that when I check the the following table v$NLS_PARAMETERS it clearly shows NLS_CHARACTERSET = WE8ISO8859P1 and not WE8MSWIN1252.
I have no idea where it is getting this or why it is using it for the export.
Should I be foucing on setting NLS-LANGi in environment variable at the OS user level, it doesn't seem to have one set. Or should I be foucesd on the fact Oracle seems to be showing two different character sets. Bascially I am stumped.
So now I don't know how to resolve this issue, any advice would be greatly appreciated.
Thanks guys

For future reference, the Globalization forum: Globalization Support
user12243721 wrote:
I have run an export which completed sucessfully WITH warnings.
I figure I am getting this message due to the following line at the top of teh export logYou should have EXP-nnnnn messsages in the log.
If exp-91, then you should match client charset to server's. If that is not possible you might use STATISTICS=none for the export.
"Export done in WE8MSWIN1252 character set and AL16UTF16 NCHAR character setThis is the (requested) export client and produced dump file character set. It's picked up from NLS_LANG, which defaults to WE8MSWIN1252 on western europe Windows' settings.
server uses WE8ISO8859P1 character set (possible charset conversion)"This matches database character set (NLS_CHARACTERSET).
Should I be foucing on setting NLS-LANGi in environment variable at the OS user level, it doesn't seem to have one set. Oracle Home on windows platform has a "default" NLS_LANG setting, implemented through the registry. (The char set part matches windows acp, ansi code page, I believe).
Or should I be foucesd on the fact Oracle seems to be showing two different character sets. It's one and the same.
For the "traditional" exp/imp tools, always care for NLS_LANG settings. For export sessions you should generally (always) match export client char set to that of the database character set. Note that this is sort of an exception to the rule, that you should not look to the database for the client side setting (see the NLS_LANG FAQ).
Seeing your database character set (NLS_CHARACTERSET) and that Windows (win-1252) is mentioned in your post, there might be a potential loss of character data considering db is a subset (character repertoire). If you have Windows based clients/apps, character data may be lost during proper conversion (replacement character used). Also the much too common pass-through scenario, data may be at risk due to incorrect setup. See e.g.
http://download.oracle.com/docs/cd/B19306_01/server.102/b14225/ch2charset.htm#sthref165 (fig 2-6)
http://download.oracle.com/docs/cd/B19306_01/server.102/b14225/ch11charsetmig.htm#i1005993
http://www.oracle.com/technetwork/database/features/globalization/nls-lang-099431.html

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제품 : ORACLE SERVER
작성날짜 : 2002-10-08
ORACLE 버젼 간 EXPORT/IMPORT 상호 호환성 참조표
===============================================
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---------------------------------------------+
| EXPORT | IMPORT to |
| from --------------------------------+
| | 7.0.x | 7.1.x | 7.2.x | 7.3.x |
| 7.0.x | EXP70x | EXP70x | EXP70x | EXP70x |
| 7.1.x | EXP70x | EXP71x | EXP71x | EXP71x |
| 7.2.x | EXP70x | EXP71x | EXP72x | EXP72x |
| 7.3.x | EXP70x | EXP71x | EXP72x | EXP73x |
| 8.0.x 주1| EXP70x | EXP71x | EXP72x | EXP73x |
| 8.1.x 주1| EXP70x | EXP71x | EXP72x | EXP73x |
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----------------------------------------------------------------------+
| EXPORT | IMPORT to |
| from --------------------------------------------------------
| | 8.0.3 | 8.0.4 | 8.0.5 | 8.0.6 | 8.1.5 | 8.1.6 | 8.1.7 |
----------------------------------------------------------------+
| 7.x 주2| EXP7x | EXP7x | EXP7x | EXP7x | EXP7x | EXP7x | EXP7x |
----------------------------------------------------------------+
| 8.0.3 | EXP803 | EXP803 | EXP803 | EXP803 | EXP803 | EXP803 | EXP803 |
| 8.0.4 | EXP803 | EXP804 | EXP804 | EXP804 | EXP804 | EXP804 | EXP804 |
| 8.0.5 | EXP803 | EXP804 | EXP805 | EXP805 | EXP805 | EXP805 | EXP805 |
| 8.0.6 | EXP803 | EXP804 | EXP805 | EXP806 | EXP806 | EXP806 | EXP806 |
----------------------------------------------------------------+
| 8.1.5 | EXP803 | EXP804 | EXP805 | EXP806 | EXP815 | EXP815 | EXP815 |
| 8.1.6 | EXP803 | EXP804 | EXP805 | EXP806 | EXP815 | EXP816 | EXP816 |
| 8.1.7 | EXP803 | EXP804 | EXP805 | EXP806 | EXP815 | EXP816 | EXP817 |
----------------------------------------------------------------+
* 주의 사항 *
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| EXPORT_VIEWS_VERSION |
------------------------------+
| Value | Introduced in Release |
------------------------------+
| 1 | 7.1.3 |
| 2 | 7.2.1 |
| 3 | 7.2.3 |
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------------------------------+

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Oracle Export charset concern

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