As you probably know, Office 2007 or Office ver xx is not part of Windows and never has been.
Your Windows 7 is the Operating system, and Office is a suite of applications that are engineered to work together, including Word, Excel, OneNote, Outlook, Publisher, etc.
So, to uninstall one component of Office, go to the Control Panel, Features and Programs (old Add/Remover Programs), and click on MS Office 2007 which you will find in the list of installed software applications.
Click on Change, and you will have a choice of what to do. Remove a component is one choice and you can individually remove Outlook. leaving other installed components of Office intact.