User identified externally

Question

I downloaded and installed Oracle Ex on Windows XP Professional SP 2 taking all of the defaults and all when swimmingly. Then I used sqlplus to create an externally identified user. The user was created. However if I enter "sqlplus /" to connect as the user I get
ORA-01017: invalid username/password; logon denied
This same procedure works under Linux. How do I get it to work under Windows?
Thanks,
john

Answer 1

Creating External users in Oracle
For example, consider the following user definition:
CREATE USER OPS$SCOTT IDENTIFIED BY TIGER;
Assuming that Scott has logged onto the operating system, Scott could enter SQL*Plus with or without a password:
sqlplus /
sqlplus scott/tiger
You can also create the user with the "identified externally" clause:
CREATE USER OPS$SCOTT IDENTIFIED EXTERNALLY;
Create Oracle External users in Windows
External users are easy to create in Linux because you need only create the user in /etc/passwd. It's a bit trickier in Windows:
1. Create the Windows user:
start --> settings --> control panel --> administrative tools --> computer management --> user
2. Add the new user to the Oracle group:
start --> settings --> control panel --> administrative tools --> computer management --> groups
3. Add user to OS Database Administrator:
start --> programs --> oracle home --> configuration and migration tools --> administration for windows NT --> OS database administrator
4. Add user to OS Database Operators:
start --> programs --> oracle home --> configuration and migration tools --> administration for windows NT --> OS database operators
5. Add user to OS Administrator:
start --> programs --> oracle home --> configuration and migration tools --> administration for windows NT --> OS administrator
6. Add user to OS Operators:
start --> programs --> oracle home --> configuration and migration tools --> administration for windows NT --> OS operators
7. Add os_authent_prefix=OPS$ to your initialization parameters (pfile or spfile) and bounce Oracle database, if necessary.
Ref: http://www.dba-oracle.com/t_windows_external_user_authentication.htm