Software

Generally speaking NO.

Caveat - We have upgraded from Outlook 2000 to Outlook 2003 without any loss of information. Remember that the information is stored on a server and not the local PC (assumption).

Contacts will not be visible automatically and you will have to set those up manually through services (I think).

You have not mentioned where you are going to install the things either on Server or on Client..! Do one thing BACK UP your Outlook data for extra precaution. As we know it will not affect your data to install or upgrade with newer microsoft office.

Though for your precaution backup your DATA.

Good Luck.

I upgraded my home PC from Office XP to Office 2003 a few months back with no problems...all my contacts, email, appointments, came over fine. Just last week, trying to fix another issue I actually uninstalled Office 2003 and reinstalled it and all my Outlook data was there fine. And I did not even do a backup, but thinking back, I should've just to be safe. :-)

Any personal settings that you have on your client side like autosignatures, special views, deleted items settings, spellcheck settings,etc. will be lost with the upgrade. Like the comments below all of your data, email, contacts, calendar items are stored on the exchange server and will not be lost in the upgrade.

In general no. But to be on the safe side, I would export all my critical info before installing/upgrading to the next version... it's best to be safe rather than sorry.

Absolutely not. When you install the Microsoft Outlook, the installation procedure imports all of your oldest Outlook settings and data. You can install without any problems.