UTFG
3.1 What is the difference between Windows XP Professional Edition and Windows XP Home Edition?
With Windows XP, the two Windows OS lines merge, so we'll no longer have Windows 2000/Windows NT and Windows Me/Windows 98—just Windows XP. However, we still have two different types of users: the office user and the basic home user with one machine. Hence the two versions of Windows XP: Windows XP Professional, for those accustomed to Win2K Professional/NT Workstation, and Windows XP Home Edition, for those accustomed to Windows Me/Win98.
Although the XP Pro and Home Editions share the same common core code, they don't have the same features. The right version for you depends on the functionality you need. Think of XP Pro as a superset of XP Home. The following is a short list of supported features:
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Backup—XP Pro has the standard Win2K backup program available as default; XP Home has no backup program available by default (but one can be installed from the CD).
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Dynamic disks—XP Pro supports dynamic disks; XP Home doesn't.
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Internet Information Server (IIS)—XP Pro includes IIS; XP Home doesn't.
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Encrypted File System (EFS)—EFS debuted in Win2K, and it enables you to encrypt files on an NTFS partition, a very useful feature for mobile machines. XP Pro includes EFS; XP Home doesn't.
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Multiple monitors—XP Pro supports up to ten monitors; XP Home supports only one monitor (Windows Me/Win98 supported multiple monitors).
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Multiprocessing—XP Pro supports up to two processors; XP Home supports only one (as did Windows Me/Win98).
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Remote Assistance—Both editions support Remote Assistance, which lets someone from a Help desk connect to the client desktop to troubleshoot problems.
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Remote desktop—XP Pro adds to Remote Assistance by letting any machine running a Terminal Services client run one Terminal Services session against an XP Pro machine.
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Domain membership—XP Pro systems can be domain members; XP Home systems can't, but they can access domain resources.
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Group Policy—XP Pro supports Group Policies; XP Home doesn't.
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IntelliMirror—XP Pro supports IntelliMirror, which includes Microsoft Remote Installation Services (RIS), software deployment, and user setting management; XP Home doesn't support IntelliMirror.
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Upgrade from Windows Me/Win98—Both XP Pro and XP Home support this upgrade.
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Upgrade from Win2K/NT—Only XP Pro supports this upgrade.
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64-bit support—Only XP Pro has a 64-bit version that supports the Itanium systems.
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Network support—XP Pro includes support for Network Monitor, Simple Network Management Protocol (SNMP), IP Security (IPSec), and Client Services for NetWare (CSNW); XP Home doesn't.
http://www.informit.com/articles/article.aspx?p=24963
http://www.winsupersite.com/showcase/wi ... me_pro.asp
http://www.windowsnetworking.com/articl ... pdifs.html 
. V podstate na domáce použitie ti bohate stačí XP Home.
mne by napr na moje domace pouzitie home asi nestacilo
