Auto logon TS

[guest]

To achieve that you can save the different user credentials as the .rdp
files first. If the "save my password" selection is grey, it is restricted
by the "Do not allow passwords to be saved" group policy settings under:

[Computer Configuration\Administrative Templates\Windows Components\Client]
and [User Configuration\Administrative Templates\Windows Components\Client]

The policy setting is stored in the DisablePasswordSaving registry entry in
the following registry subkey:
HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows NT\Terminal Services
When you enable the "Do not allow passwords to be saved" setting so that
users cannot save passwords, the DisablePasswordSaving registry entry is
set to 1. When you disable this setting so that users can save passwords,
the DisablePasswordSaving registry entry is set to 0 (zero).

To make the saved credential automatically be passed on the terminal
server, we need to ensure that the following settings on terminal server:

Go to Start -> Administrative Tools -> Terminal Service Configuration ->
Connections, double click RDP-Tcp, switch to Logon Settings, make sure that
"Always prompt for password" is unselected.

After these steps, we will be able to start a remote session on a Terminal
Server using different usernames without having to provide manually
username and password each time.