OK! I understood that
All this time, I thought my listener was working, but when I used the command
'lsnrctl status'
I noticed that lisnter was not working and was failing because my hostname was correct.
I remember when I activated the mixed mode configuration for SQL Server 2005, I had to provide my SQL server with a host name and was different from the WIndows XP shared host name.
So, I edited my TNSNAMES.ORA and LISTENER.ORA file, searched the windows for them, and then fixed the hostnames.
Reloads Oracle XE services and the web page is now running, as well as SQL DeVELOPER.
I thought I should share a tool with you.
Thanks for the help and efforts. You were great.
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