Here's quite a bit of info for you to consider - hope this assists you in
determining what files you need to back up although there's probably more
files you need to consider depending upon what programs you are running etc.
Outlook Express - there are four separate items to backup and two Registry
Keys.
http://www.support.microsoft.com/?kbid=270670
OLEXP: How to Back Up and Recover Outlook Express Data
http://support.microsoft.com/default.aspx?scid=kb;EN-US;276511
OLEXP: How to Backup and Restore Outlook Express Blocked Senders List and
Other Mail Rules
Locate the .dbx files that contains your email - find storage location by
choosing Tools, Options, Maintenance tab and check the Store Folder entry.
Copy and paste this address into your Start, Run dialog to open it, then
copy the files to a backup disk.
The Address Book - Select File, Export
Choose Text File (Comma Separated Values) as the export option, as this can
be easily be imported into Outlook Express and any standard database
software.
The setup information for each of your email and news accounts must also be
exported; you do this through the Tools, Accounts dialog - select the
account and click Export to save the data in an .iaf file format.
If you prefer:
http://www.oehelp.com/OEBackup/Default.aspx
This is a simple program to back up the following:
Address Book files (.wab)
DBX files (Outlook Express 5.0 and greater)
Registry Entries:
Address Book
All Identities
File & Settings Transfer Wizard
http://aumha.org/win5/a/fast.htm
HOW TO: Use the Files and Settings Transfer Wizard By Using the Windows XP
CD-ROM:
http://support.microsoft.com/search/preview.aspx?scid=kb;en-us;Q306186
HOW TO: Use Files and Settings Transfer Wizard in Windows XP
http://support.microsoft.com/?id=293118
Backing up your Web Favourites
1. Open Internet Explorer;
2. Choose File/Import and Export from the menu
3. Click next
4. From the Import/Expert Wizard windows select Export Favourites
5. You'll be prompted for which favourites you want to export, if you just
leave the highest level highlighted all the favourites will be exported
6. Click next
7. You can then select a location to where you want to store the backup copy
of your favourites.
To restore the favourites onto another machine, you repeat the process
above, except instead of exporting the favourites you select import and
select the location where you backup your favourites
Word Backup Customisations
Templates and Add-ins
To find out where your "regular" templates are stored, select Tools +
Options + File Locations, and note the paths listed under "User Templates"
and "Workgroup Templates".
To find out where your global template Add-ins are stored, select Tools +
Options + File Locations, and note the path listed under "Startup".
If you can't see the full paths, double-click on them. Some of your
templates may be stored in sub-folders of these folders (any custom - as
opposed to Microsoft-generated) - tabs in the File New dialog come from the
names of any such sub-folders).
AutoCorrect entries
AutoCorrect entries that were saved without formatting are stored in an acl
file; whereas entries that were saved with their formatting are stored in
Normal.dot.
If you have trouble finding the folder in which the acl file is stored, add
an AutoCorrect entry in Word, and then search your hard disk for *.acl files
modified in the last day,
If the username is different on the second machine you will, of course, need
to rename the acl file after copying it over.
Custom spelling dictionaries
You can create multiple custom spellchecking dictionaries if you want to
(for use in different contexts), but the default one is called Custom.dic.
If you click the "Add" button when you run the Spellchecker, the word will
be added to the current custom dictionary.
You can find out where your dictionary file is stored by selecting Tools +
Options + Spelling and Grammar + Dictionaries + New. The default path
varies, depending on your operating system and which version of Word you are
using.