Remote Desktop for Windows XP

To allow other computer to remotely connect to Windows XP, need to do the following:

1. go to Control Panel/System/Remote tab/check on Allow users to connect remotely to this computer
2. click "Select Remote Users.." and select what user will be allowed to connect to this machine.

Microsoft claimed that the account used for remote desktop connection doesn't allow to use null (blank) password, this is wrong. but in order to allow null (blank) password, we need to:

1. go to Control Panel/Local security Policy/Local Policies/Security Options
2. in the right panel, find "Accounts: Limit local account use of blank passwords to console logon only" and disable this setting

Reference:

Remote Desktop for Windows Vista