This may help some of you who are using TestComplete to access an Oracle database.

When using TestComplete on Vista-64 or XP-64 environments and attempting to create a DBTable store against Oracle, I got ORA-06413 or ORA-12154 messages. Because SQL*Plus worked properly and our application worked properly, it
had to be something specific to TestComplete/Oracle.

It turns out that Oracle does not like being used by applications with parenthesis in the directory name. The default location for TestComplete on 64-bit platforms is in the Program Files (x86) directory. The solution is to install TestComplete into a simpler directory. After this, TestComplete can use the Oracle 10.2.04 client with no problem.

Best Regards,
glen