Outlook 2007 - Open several windows at the same time
Below is a tips of how to open several windows at the same time under Outlook 2007:-
How to proceed
For example if you wish to open the calendar as well as the mail editor at the same time, position your cursor over the command prompt
"Calendar".
Right click on your mouse and select option for opening calendar in new window.
If you wish to open a third window, do same as above.