To manually reinstall Outlook Express, follow the next steps:

NOTE: You must be logged on as Administrator or as a member of the Administrators group in order to perform this procedure.

1. Click Start , click Run , and then type the following command:
   
   %systemroot%\inf
   
   NOTE: There are no spaces at all in the preceding command line.
    
2. Click OK to open the INF folder.
    
3. Locate the file MSOE50.inf.
    
4. Right-click the file, and then click Install . This will reinstall the files that Outlook Express needs to proceed normally.
   
   NOTE: It will ask you to put your windows XP cd in the drive.