The Windows 7 Taskbar is one area of the Windows 7 operating system that Microsoft put lots of improvements in. Two of the features that have been introduced and revamped are Jumplists and taskbar previews.
Jumplists display often used program features and links to recent documents. Not every software supports Jumplists yet, but it is likely that support will increase in the coming years. Many Microsoft applications among others support them on the other hand.
The Microsoft Excel Jumplist for instance displays options to create a new Excel document, or open one of the previously accessed spreadsheets. That’s more comfortable than having to either open Excel to load the spreadsheet, or locate the spreadsheet on the system to load it in the program.
Taskbar previews display thumbnail or text previews of all open instances of a program when the mouse cursor hovers over the item.