Hi all,
if you installed both Oracle Client and OEM, and you got error when you
tried to configure your BDE alias,  here is a possible solution:
goto your control panel, system page, make sure that the path to your Oracle
Home comes before the path to the OEM directory.  It works for me.
Good Luck!

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Jack Wu
Global Investment Systems
j...@gisltd.com

Another possible solution is to implement TNS_ADMIN entries for all
homes in the registry.  By default, the OEM uses its own TNSNames file.
Setting all homes to use the same tnsnames file solved this problem for
us.
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Jim Poe
<j...@fulcrumit.com>
Fulcrum InteTech, Inc.