Can't help you with Exchange there bud, as I run a Notes/Domino shop. Do have the ARCserve Notes agent working though. Had some trouble with it about a week ago. Darn thing ran fine for months and then decided to quit. Shoehorned in SP4 and some hotfixes and it's back in business.

Well, if I can get past this DB rebuild anyway.
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Give a man a fish and he will be back for more. Slap him with a fish and he will go away forever.