Internet Explorer crashes (stops responding) when you try to open an Office document in a SharePoint document library

Scenario:
You get a message whenever you try to click or open any document from SharePoint Document Library.

Reason:
You might have a mixture of Office 2003 and Office 2007 products on your machine?

Resolution:
Microsoft Hotfix

Steps:
http://kbalertz.com/938888/Description-Office-hotfix.aspx