MSOE.DLL COULD NOT BE LOADED This error can occur if one or more *.dbx files in the current store folder are set as Read-only. Close OE and open the store folder in Windows Explorer. Select all files, then right-click on any one and select Properties. Uncheck the box for "Read only", leaving only the "archive" bit checked.
Outlook Express and Internet Explorer share many files. Perform a repair of Internet Explorer. From Control Panel select Add/Remove Programs. Scroll down to Microsoft Internet Explorer and highlight it. Click on the Add/Remove button. When the IE Tools menu comes up, select Repair. Click OK.
Also, you can get to the IE Tools menu by clicking Start > Run and type
If still no joy, uninstall and reinstall Outlook Express.