As LucheLibre says, No
Having said that, I bought and use Win7 Pro x64 because I thought I'd need XP mode.
I haven't needed it nor have I loaded it.
All my old XP programs have installed and run. A couple needed some tweaking such as set them to run in Administrator mode.
I would not expect some things that need to get deep into the OS such as a utility program, nor would I want to run some of those that are designed for Xp in Windows 7. Nor would I expect 16 bit programs to run.
Other things such as older versions of Nero won't run nor would I want to run them even under XP mode.
Edited by rotor123, 05 January 2012 - 11:16 AM.