I tried to move from Outlook Express to Outlook, but when I try to open the address book, I get the message -An error occurred while attempting to open the Windows Address Book. Unable to find the WAB.DLL. I have a copy of WAB.DLL in C:\program files\common files\system\mapi\1033\nt. Is this what it's looking for and if so,why can't it find it? Any ideas please.