what are the utility programs of windows xp professional
Windows 7 (32 bit versions) have an emulation of DOS (cmd) that seems much more compatible than running DOS apps in Window XP. You can routinely run WordStar, PC Tools apps, many public domain utilities and various DOS accounting programs in Home, Professional and Ultimate versions of Windows 7. Remember though, they must be 32 bit versions. Windows 7 Professional has an XP compatibility window you can setup. Theoretically, in that mode under the 64-bit version of Windows 7 you might be able to run various DOS apps.
It doesn't. I have XP at home and there is no "DOS" running in the background. Windows 3.0 and 3.1 did require DOS in order to function, however.
No. Windows XP is not based on MS-DOS, unlike older versions of Windows like 95 or 98. These systems "booted in MS-DOS mode" by interrupting the boot sequence that started them from the DOS command line. Windows XP has it's own kernel and bootloader, and so does not rely on MS-DOS for anything. The command prompt you may find in XP is just a virtual machine to allow for running some DOS programs, as well as command-line system administration.
Most programs for DOS can be run in a modern operating system using DOSBox or Qemu.
Most programs for DOS can be run in a modern operating system using DOSBox or Qemu.
Retailers do still sell laptops with Windows XP Professional. Windows XP programs came out in 2001 but are still one of the most popular and widely available ones.
Windows XP cannot be installed or reinstalled directly from DOS.
...with Windows XP Professional already installed on your computer. Windows Vista cannot be installed without Windows XP Professional installed first on your computer, it's the same with Windows 7; Windows' latest operating system (OS).
If you are running Windows xp mode on Windows 7 professional, ultimate, or enterprise
Pretty much yes, up until Windows XP there were versions of Windows that ran "on top" of MS-DOS, but XP (based on Windows NT) removed that requirement. MS-DOS sort of lives on as the Windows command prompt which supports most of the MS-DOS commands and allows people to run MS-DOS programs.
by downloading and running the WinXP_EN_PRO_BF utility