Question concerning Outlook emails
 

I notice that if I put a letter into the ‘To’ block, all the email addresses that I have ever sent, received and even copied on pop up in a choice box beginning with the letter that I typed in. Now, is there a way to capture all these addresses at once?

BTW - holding down the shift key doesn't do it...

That is the autocomplete list for Outlook which is kept in a .nk2 file. If you want to see everything that is in that list and possibly export them for further use, this would be your easiest & best option:
NK2View - View Outlook .NK2 AutoComplete Information

Paul, I think this will work but I am not sure how to use the nk2view.exe function. Any ideas?

Exactly what are you trying to do with these addresses?

Mike, you haven't replied to my question above, but I wanted to give you some more info. You can also try this utility by the same guy. NK2Edit: Edit AutoComplete files (.NK2) of Microsoft Outlook

This one will actually allow you to highlight any or all entries in your NK2 list and either export them, or send an email to them.

Paul,
I tried it and it work fantastic! Thank you so much.