When I send any file from Microsoft Word or Excel 2007 directly by clicking on Send email, it goes through Microsoft Outlook Express.
I want it to go through Microsoft Outlook 2007, which is my default email program.
Is Microsoft Outlook 2007 set as your default Mail client?
Click start and type "default programs". Then click "Set your Default programs".
Either choose or Set Outlook 2007 as your default program.