Good morning, We are with a customer on Rouncil Lane in Kenilworth, We are here to solve an issue where by outlook 2007 is crashing, After investigating the event log we found a number of event id error numbers 1000,5000,1002,2000. These suggested an issue with the MSO.DLL or corrupt pst, tested in safe mode and it seemed to be working fine so unlikley to be a PST file fault, Disabled all addins no change, in checking the event log further we found that some windows updates had been applied in the last 7 days, So we removed and reinstalled Service Pack 2 and this repaired the fault.