>I've actually searched Microsoft's Knowledgebase for the message. The only info I've found is that this is a "feature" that can be removed only by uninstalling Outlook. No info relevant to programming around it. But thanks for your prompt reply.

You can code around it using extended MAPI instead of simple MAPI. You can also change this on the server end if you're an administrator, but I can't confirm since Microsoft refuses to let me muck around with their email systems at the administrator level.

But, sorry, I haven't gotten around to coding samples using extended MAPI, so you're on your own.