My testbed exchange 2010 been playing up in the last week or so. Ive only got 2 or 3 mailboxes on this test install.. Its got 4gb of ram. Its been running fine since january. Its causing the server to not accept messages. Ive killed the process for now and it seems to have settled down.

Any idea what is causing this to use all the system resources? And is it a service i can disable?