Is ther any way of filling credentials in Windows logon using script?

Hello,

Is there any way to fill in login and password at windows logon using a script (that would be started via psexec)? Bat would be great, but any other is ok too. Nothing more, no mapping. Just logon.
I've spent a few days searching for this info, and haven't found any usefull info. Anyone tried such thing?

Cheers,
K.

PS. Sorry if I'm writing in the wrong section. Not shure where this topic should go.