Can not copy outlook messages

·You import mail from Outlook into Outlook Express, but you removed Outlook from your computer before you tried to import the mail into Outlook Express.
·You configure Outlook Express to be the default Simple Messaging application programming interface (MAPI) client.
·You import or export mail from Outlook Express, and you do not have Outlook installed on your computer.
To resolve this issue, try one of the following methods, as appropriate for your situation.

Method 1: If you want to use a special program you can use Outlook Express Fix Toolbox

https://www.fixtoolbox.com/outlookexpressfix.html

Method 2: Change your MAPI Settings

Configure Outlook Express to not be the default Simple MAPI client before you import the mail items. To do this, follow these steps:
1.Restart your computer, and then start Outlook Express.
2.On theToolsmenu, clickOptions.
3.On theConnectiontab, clickChangeto open theInternet Propertiesdialog box.
4.On theProgramstab, click an e-mail application other than Outlook Express in theE-maillist. ClickApply, and then clickOK.
5.ClickOKagain to close theOptionsdialog box.
6.Exit Outlook Express, and then restart Outlook Express.

You can now import or export messages.

Visit non-commercial source:
http://www.filerepairforum.com/forum/microsoft/microsoft-aa/outlook-express/538-%E2%80%8Brepair-outlook-express-dbx-file


Hi! Follow these steps to get the information:
1. Re-create your mail folder hierarchy by dragging folders into place in the Folder list. Note that any folder you have created to group sub-folders but that does not itself contain messages will not appear in the Folder list and so must be created again.
2. Re-download the list of newsgroups from each news account.
3. Reset your subscribed newsgroups and download messages again.
4. Reset synchronization options on IMAP and newsgroup folders.
5. Edit any message rule that moves or copies messages to folders other than the Inbox.
Also you can use: Easy Outlook Express Repair

Free-to-try version is available here: http://www.mail-repair.com/

I dunno but you might be better off just copying the outlook express data files from one computer to the next instead of trying to export.
http://support.microsoft.com/kb/270670
from the horses mouth.

Hi,
 
Generally users of POP3 email like to download messages to their PC and take them off the central server. But sometimes you'll want to leave them there so you can access them again. Like most other mail client applications, Outlook Express can be configured to leave messages on the server indefinitely or for a specified period of time.
 
How to Set Outlook Express To Leave Email Messages On The Server
Open Outlook Express
Select Tools/Accounts.
Click on the Mail tab, highlight YourAccount and click on the Properties button.
Click on the Advanced tab.
In the Delivery section, select the checkbox to Leave of copy of messages on server.
Select the appropriate checkbox to delete the messages from the server after a certain number of days or until the messages are deleted from the Deleted Items in Outlook Express. (Do also check you mailbox size from your internet provider, If you get a lot of emails you may fillup your mailbox fast)
 
For Outlook 2003
go to Tools > Options.
Select the Mail Setup tab from the Options dialog, and click E-mail Accounts.
Select the email account and click Next
Under the Delivery section of the Advanced tab, Checking the Leave a copy of messages on the server checkbox instructs Outlook 2003 to leave a copy of your emails on the server indefinitely
 
You will find the same options on all email software. Once you have Set this on all the computers, you will get the same mails on each one.
 
Hope this helps. Please rate your feedback!
Thanks,
VJ

Copy the data from back up drive all the Outlook express folder and copy to the following location

C:\Documents and Settings\your user name \Local Settings\Application Data\Identities\{631B4C7F-5E06-419C-BF23-86B8F736E7C8}\Microsoft\Outlook Express

reconfigure your account only way.

Short copy & paste from the site how to disable Outlook Express compact (not completly tho) in the registry:
HKEY_CURRENT_USER\Identities\{long number}\Software\Microsoft\Outlook Express\5.0. In the right hand pane and find *Compact Check Count* >right click>modify>decimal>and set the value to 0, (zero). This will reset the prompt, and you won't see it again for another 100 closings.

Have a look at this follow the instructions it should make it all better.

MailNavigator can cope with the task of restoring out-of-order dbx files when Outlook Express itself cannot read them and when a range of other programs are not capable of restoring the information contained in these files. These situations can happen because of viruses, computer breakdown, power interruptions and many other reasons, leading to errors in the file system.
If your computer crashed, first of all you should make sure you have backup copies of your dbx files as well as of all other important data. It's good if you make backup copies of your data on a regular basis. But, unfortunately, in our experience situations are often encountered where there is already nothing to restore.
The process of data recovery from dbx files includes two stages:

• Search and read the dbx files in MailNavigator.
  
• Export the restored messages back to Outlook Express.
  

If your Outlook Express program is properly installed and tuned, MailNavigator will automatically find the dbx files from the information in the systems register. In this case you can load the dbx files from the Information Retrieval page by double clicking on each of them. Or search for messages in these files using the search system.
If MailNavigator cannot automatically determine the location of the dbx files (for example if these files are on a CD), first you have to find them using search tools, and then load them into MailNavigator using the menu command:
File | Load External Mailbox...
Once you've read the messages, select the ones that should be exported back into Outlook Express. You can use various filters to select the messages. If you want to export all the messages browsable in the Navigator at once, use the menu command:

Message | Select All
Having selected the messages, export them using the menu command:

Message | Save as...
In the opened dialogue box, indicate the file and export path, and choose the file type: Eudora mailbox.
When the command is executed, there will be files in the export directory with extensions .toc and .mbx, and also a file descmap.pce. If there are attached files in the exported messages they will be saved in the subdirectory Attach.


Once the mailbox in Eudora format is created, open the program Outlook Express and use the menu command:
File | Import | Messages...

In the opened dialogue box, as the program from which the message is imported, select: Eudora Pro or Light:

In the next dialogue box indicate the directory in which you put the messages from MailNavigator at the export stage:

Further, if Outlook Express finds mailboxes in this directory, it will suggest you select one of them for import:

All that remains to do is to press the Finish button, and a folder containing the imported messages is created in Outlook Express. hope this helps