Most likely you aren't actually using a full version of Outlook. You're
using IMO mode which actually uses Outlook Express for some of its functions
such as the address book. So your problem is actually within Outlook
Express, not Outlook.
You have two options to try to fix this:
1. Close Outlook. Open Outlook Express, then open its address book. Go to
Tools Options. Disable sharing. Restart OE and then re-enable sharing.
Close OE. Open Outlook. See if your address book now works.
2. If not, you'll need to repair your Windows Address Book: close both
Outlook and OE. Rename any WAB32.DLL files you find. Then run a repair
operation on Outlook Express.
--
Russ Valentine
[MVP-Outlook]
"shughenry" wrote in message
...
I'm in Outlook when I get this message. When I click on my "To" tab to
send
an email (or even when I just type in an email address) I get this error
message and can't send email. I've read all the Outlook 2000 help to no
avail. Thanks.

"Brian Tillman" wrote:

shughenry wrote:

I get this error message "An error occurred while attempting to open
your Windows Address Book". I have changed NOTHING since yesterday. I
cannot send any messages. Please help!

How is this an Outlook question?
--
Brian Tillman