outd-xp:xppro

Windows XP Home vs Pro

Boot with a Vista installation DVD or BartPE CD, then run regedit from this environment
Load hive c:\windows\system32\config\system (from harddisk, file system without extension) into HKLM\HomePro
Delete content of key HKLM\HomePro\SYSTEM\ControlSet001\Control\ProductOptions\ProductSuite (do not delete key)
NOTE: If you need to update the service pack, the ProductSuite needs to be set back to “Personal” for the update
Unload hive and reboot into your new HomePro system
Run regedit from your new HomePro system
Edit key HKLM\SYSTEM\CurrentControlSet\Control\Lsa\forceguest from “1” to “0”. It is not necessary (and not possible) to disable option simple file sharing in folder view.
The new functionality for your new HomePro system is now activated

Features	Home	HomePro	Profes-
	Edition	Light	sional
GUI for access control of folders and files	-	yes	yes
Account and group management in computer management	-	yes	yes
Extended file sharing options	-	yes	yes
Runas-option / safecred	-	yes	yes
Domain integration	-	yes	yes
File encryption	-	yes	yes
User Administrator can login into running system	-	yes	yes
Offline files	-	yes	yes
Dynamic filesystem	-	-	yes
Group Main users	-	-	yes
Remote Desktop Server	-	-	yes
Netware Client	-	-	yes
Webserver IIS	-	-	yes
Group policy editor gpedit.msc	-	-	yes
Security settings in Control Panel	-	-	yes
Commandline tools tasklist and taskkill	-	-	yes

c't no.15/2005 - page 50, c't special Windows no.4/2008 - page 112