Hi Axel,

You wrote:

What and where are the files that I need to save and then reinstall
into my new computer to keep my settings, messages and address book.

I am using XP.

You can use the built-in Files and Settings Transfer manager. It can transfer
all your stuff, or you can select to transfer only Outlook Express files and
settings.
http://aumha.org/win5/a/fast.htm

You can also do it yourself pretty easily. See this section of my website:
www.insideoe.com/backup

--
Tom Koch, MVP for IE/Outlook Express
http://tomserdam.com
http://insideoe.com
http://iusevista.com
Awareness is free.