The answer is nothing, most of the time. But occasionally the program gets very slow and cantankerous. I have had times when the program would not run until the next Microsoft update came along.
This made me angry and sad because Outlook 2007© is central to my communication with the world. I tried other email programs and none of them satisfied me. I bought programs that saved my emails as individual msg files and one that could read these files. I bought another one to save my attachments. Yes, you can backup up your Outlook Personal Folders (pst) but you need Outlook to read them.
We at Small b Systems now use Microsoft Exchange© hosted by 1 and 1, our Internet Service Provider. It cost about $7 a month and it is the best money in our budget. As part of the service, you get a copy of Microsoft Outlook 2007©. Emails are delivered to your exhange account which you can read with any Outlook installation that has been linked to the exchange account and by web mail at https://exchange.1and1.com.
When you connect to your exchange account using Outlook 2007, the computer you are using and the exhange account syncronize the data that each has so whenever, or from wherever, you connect to your exhange account, you share the same information with all users sharing the account. We also syncronize our Blackberry phones with exchange using Blackberry software.
The exchange account is our company's backup to our communications data. But we had a few clients that had another need. They wanted to backup their Outlook contacts and emails to a databse they could control and use as needed. To that end, we have designed and written Contacts Database and have Email Database almost finished. Our program reads information from Outlook 2007 without user intervention and stores it in an Microsoft Access 2000© database. The current version database is read only. All editing and additions are done in Outlook. You can read more about the program and download a trial copy by visiting our web site http://www.smallbsystems.com.
We would like to hear your ideas on how we could make the application more usefull to you, or your company. My email is paul@smallbsystems.com