I saw this hint in the mailinglist lately. Thanks to the original author EnablePlainTextPW: The location of this key in the registry has changed from NT4 to Win2000. The new way of setting this is: Key: HKLM\system\currentcontrolset\services\LanmanWorkStation\para meters name: EnablePlainTextPassword Data type: REG_DWORD Data: 1 (binary) Reboot required to take effect.