Office 2010 uses something called a sandbox

Office 2010 is becoming a hot topic lately and while it’s easy to find information about the new ribbon changes and spark lines, I wanted to take a minute to talk about some Office 2010 features that are more important for those of us working on the administrative side of things and being asked to plan and conduct an Office 2010 deployment to our organization. So here are a couple items and tips to take into consideration as you prepare your rollout.
Licensing changes – Office 2010 now supports KMS and MAK activation methods. If you already have a KMS infrastructure in place, this is a nice addition to management capabilities and makes it easier to deploy 2010.
Protected View – Protected view for Office 2010 uses something called a sandbox which is essentially an isolated instance of the Office program which prevents the file from accessing vulnerable system locations and services. This mode is an improvement over methods implemented in 2007 which were often very slow to open files and therefore caused extreme end-user frustration.
When a file is opened from a non-trusted Internet site or other high risk location, the file will open in Protected View and the user will have the option of editing the document by clicking on the bar that appears, shown below.