>> Parallels does nothing of the sort. XP does it. This has nothing to do with Parallels and is 100% an XP issue.<<
I hate to disagree with you, but can safely say this issue is related to Parallels and not Windows XP. Having performed several dozen Windows XP installations, the normal Windows behavior I've witnessed for a non-domain-based install is this:
1) An Administrator account is created with no password established. A Guest account is also created, but is disabled by default
2) During the installation, additional user accounts can be specified, but again no password is required. They have administrator access by default
3) After the installation is done, a restart is initiated
4) On restart, only the additional user accounts are listed, not the Administrator account
5) Clicking on one of the user accounts automatically logs in as that user.
5a) Then, one can go to Control Panel | User Accounts to set passwords, change names, and make more restictive the user account and other additional user accounts, but not the original Administrator account
5b) In XP Professional, one can go to Control Panel | Administrative Tools | Computer Management to manage users to a finer degree, including the original Administrator account
5c) In XP Home, one must boot in Safe Mode to access the Administrator account to set the password. After that, booting in safe mode will list the Administrator and additional accounts, but a password will be required to access any password protected accounts, including the Administrator account.
In all cases, once a password has been set for any account, including the Administrator account, logging into Windows using that acount requires a password.
Except in a Parallels on Mac installation.
Parallels bypasses the login screen and automatically logs onto the Administrator account. I don't know how, or why, but it does. Under normal circumstances, the Administrator account is not even visible, unless booting in Safe mode.
So, this is not a Windows issue. It is a Parallels issue. Maybe it's fixable by running "Control userpasswords2", but that is not normally required by Windows and is at best a workaround to a nonstandard, and undesirable, behavior displayed by Parallels hosting Windows on the Mac.
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jack