I have an executive at our company that unfortunately uses the calendar reminders as a task manager. They have recently used the dismiss all button. I have been searching around for about two hours and have not found a solution yet to restore the dismissed reminders. I have tried the CLI outlook.exe /cleanreminders which didn't work. I have also tried setting the system time back then forward again which didn't work either. We have recently migrated to exchange 2007 so I have the calendar events both on the exchange server and in the user's .pst file. I have seen some solutions suggesting restoring the exchange account but in this case I don't think it will work as we have been on exchange for less than a week and there are reminders that are needed going back about 6 months. Any assistance would be greatly appreciated.