How do I find an e-mail address I have lost?

Microsoft Office Word Docmanagement

I have lost e-mail addresses for a couple of friends and I would like to know 
if there is a "directory" where I might find them.

There is no directory where you will find email addresses. You'll need to 
contact your friends some other way and ask them for their email address.

Hope this helps.

Shauna Kelly.  Microsoft MVP.