Isqlplus and TNS_ADMIN

Hi,
i want to implement several isql plus servers on the same machine. What i want to do is have a different TNS_ADMIN variable for each one, resulting in a PROD isql, a DEV isql etc. Has anyone done this? I havent managed to figure out how yet. Any ideas gratefully received.
Cheers,
Richard.

I was able to do it by starting two Apache servers.
I copied $ORACLE_HOME/Apache/Apache/conf/httpd.conf to httpd2.conf. I
edited the new file and changed the Port and Listen directives from
7777 to a new port, 7779. I changed the PidFile directive to a new
file.
I copied $ORACLE_HOME/Apache/Apache/bin/apachectl to apachectl2 and
edited its PIDFILE variable to match the httpd2.conf PidFile filename.
I then started the second Apache with:
$ORACLE_HOME/Apache/Apache/bin/apachectl2 start -f $ORACLE_HOME/Apache/Apache/conf/httpd2.conf
The URL to access the second iSQL*Plus server obviously needed to use
the new port:
http://host.domain:7779/sqlplus
I was able to change my TNS_ADMIN before starting the second server
and change the available network aliases for that server.
I could also copy isqlplus.conf to isqlplus2.conf, add a
iSQLPlusConnectIdList option, change httpd.conf to include
isqlplus2.conf (instead of oracle_apache.conf) and have a drop down
list for the new iSQL*Plus server.
I don't know what the Oracle HTTP folks would say about all of this
though. Use at own risk.
-- CJ

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