CLI & Registry User Administration in Windows XP

This is a simple user administration in Windows XP. There are lots of hidden gems here.

Adding a new user,

net user somename somepassword /add

Deleting a user,

net user somename somepassword /delete

Making a user an administrator,

net localgroup Administrators somename /add

Removing user administrator rights,

net localgroup Administrators somename /delete

Hiding a user from the login screen,

REG ADD \\"HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon\\
SpecialAccounts\\UserList\\" /f /v somename /t REG_DWORD /d 0

Showing a user on the login screen,

REG ADD \\"HKEY_LOCAL_MACHINE\\Software\\Microsoft\\Windows NT\\CurrentVersion\\Winlogon\\
SpecialAccounts\\UserList\\" /f /v somename /t REG_DWORD /d 1