Where is "Browse in same window" in Windows 7

"It looks like the capability to do this was removed from the GUI in Windows 7.

Have a read of the following for instructions on how to change the behaviour via the registry to how you want it:
- How to configure Internet Explorer
to open Office documents in the
appropriate Office program instead of
in Internet Explorer
- A new
window opens when you try to view a
2007 Microsoft Office program
document in Windows Internet Explorer
7 or Internet Explorer 8"

"Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Classes\Excel.Sheet.8]
""BrowserFlags""=dword:00000008

I pulled this from an XP machine running Office 2003 and put it in a Windows 7 machine running Office 2003. This will force Excel to open in Excel rather than inside IE 8."