This is easier.
Do not use control userpasswords2 to create accounts if you are using XP
Home!!!
[[You can also use turn on automatic logon without editing the registry in
Microsoft Windows XP Home Edition and in Microsoft Windows XP Professional
on a computer that is not joined to a domain. To do this, follow these
steps:
1. Click Start and then click Run.
2. In the Open box, type control userpasswords2 and then click OK.
Note When users try to display help information in the User Accounts window
in Windows XP Home Edition, the help information is not displayed.
Additionally, users receive the following error message:
Cannot find the Drive:\Windows\System32\users.hlp Help file. Check to see
that the file exists on your hard disk drive. If it does not exist, you must
reinstall it.
3. Clear the "Users must enter a user name and password to use this
computer" check box, and then click Apply.
4. In the Automatically Log On window, type the password in the Password
box, and then retype the password in the Confirm Password box.
5. Click OK to close the Automatically Log On window, and then click OK to
close the User Accounts window. ]]
From...
How to turn on automatic logon in Windows XP
http://support.microsoft.com/kb/315231
Do not use control userpasswords2 to create accounts if you are using XP
Home!!!
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Info about what and how TweakUI does this.
TweakUI\Autologon
This allows setting the username and password so that the system
automatically logs in at startup. The user need not select his user name and
type the password every time. To suppress autologon, hold the shift key when
the system is starting.
TweakUI\Autologon
The last useful category in Tweak UI is Autologon, and it enables you to
automatically log on to Windows XP without providing your name, domain, or
password. Table 5-27 describes the values you must set to log on to the
computer automatically. Name is the user name, and Domain is the domain
name. To enable Autologon, you must set the REG_SZ value AutoAdminLogon to
1. Last, set the value REG_SZ value DefaultPassword in the subkey Winlogon
to the password you want to use to automatically log on to the computer. You
don't see this value in Tweak UI because it stores the password differently.
Table 5-27, sort of.
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
Log on automatically at system startup
Value Name: AutoAdminLogon
Data Type: REG_SZ
Value Data: 0 or 1
0 = Disables automatic logon.
1 = Enables automatic logon.
Automatic logon requires that the DefaultDomainName and DefaultUserName
entries appear in the registry with valid values.
User name
Value Name: DefaultUserName
Data Type: REG_SZ
Value Data: Name
Domain
Value Name: DefaultDomainName
Data Type: REG_SZ
Value Data: Domain