What is the maximum PST files that can be added to (outlook data files) MS outlook 2007?

Never heard of any limit. I know people who have 20-25 different pst attached to the outlook any given time. For sure this might impact the performance of the outlook when initially you start it. So try to minimize the number of pst's open at any given time.Raj

The limit is configured to be 20 GB. More details:http://support.microsoft.com/kb/830336/en-usFrank Wang

That's the maximum size for any single PST. I know of no limit to the number of PSTs you can have in a profile.-- Ed Crowley MVP"There are seldom good technological solutions to behavioral problems.". "Frank.Wang" wrote in message news:ba28d5fa-8e3a-43eb-9eb9-d8e96449ef74... The limit is configured to be 20 GB. More details:http://support.microsoft.com/kb/830336/en-us Frank Wang Ed Crowley MVP "There are seldom good technological solutions to behavioral problems."