If you are prompted by Outlook Express that there is an error in directdb.dll or msoe.dll,then one or more of your email folders are corrupted and with that problem , Outlook Express won't start.
You can try to do these steps to recover the corrupted files:

1. Open Start / All programs / Accessories
2.  Open Widows Explorer and navigate to C:/ Document and settings/(here goes your account name) /Local Settings/Application Data/Identities/Here goes the ID number like this{DF977043-EA42-4645-A3F7-57329F1C0866}/Microsoft/Outlook Express




3. Click Edit > Select all > Cut
4. Open MyDocument right-click on it and select new > folder and rename it something like Outlook_Express_dbx_Files and open it.
5. Now try to open Outlook Express.If you are successful,Click File > Import > Messages
 


6. Outlook import messages window opens,click on Microsoft outlook Express 6 and click Next




7. On the next window ,towards the bottom,tick Import Mail from an 0E6 store Directory option  Click OK




8. Click on the Browse button and select the folder with the email files,that you saved on the computer erlier




9. Click OK
10. click Next
11. In the next window you can choose which emails folders you want to import or else you can import all of them.Then click Next
12. All your messages are imported back into Outlook Express.Now you can click Finish
13. If you have a recent back up this is the time to replace the corrupted files
.