OC4J Configuration issue Oracle 11g R2 Windows XP and Windows 7

Hallo!I have installed Oracle Database 11.2.0.1.0 on both Windows XP and Windows 7 on 2 different machines.
Before installing on both OSs,I had installed Microsoft Loopback Adapter and had set hostname as JOEY-PC and IP address 192.168.0.X.Once the installations were complete and I restarted the machines,I could not start OEM and the error below appears
C:\Documents and Settings\JOEY>emctl start dbconsole
OC4J Configuration issue. C:\app\JOEY\product\11.2.0\dbhome_1/oc4j/j2ee/OC4J_DBConsole_JOEY-PC_orcl not found.
When I went to the C:\app\JOEY\product\11.2.0\dbhome_1\oc4j\j2ee directory,I found the folder OC4J_DBConsole_localhost_orcl instead of OC4J_DBConsole_JOEY-PC_orcl.
I assumed that by using Microsoft Loopback Adapter,I would avoid the error above and that the OC4J_DBConsole folder would permanently remain as OC4J_DBConsole_JOEY-PC_orcl instead of OC4J_DBConsole_localhost_orcl.
Why is this folder changing its name and how can I resolve this issue?
Thanks.

Pl post the contents of the file C:\WINDOWS\System32\drivers\etc\hosts on both servers
What steps did you take to set the hostname to JOEY-PC ?
Srini

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