The error message happens on the IT Helpdesk machine (local machine), not on the remote machine.
The username svc.euede.audit is the username that has admin rights to the remote machine (and local machine).
The custom action works well on a Windows XP machine.
We just upgraded the IT Helpdesk machine to Windows 7.
\\servername\lstools\lsremote {computer} works well when the user has admin rights on both local and remote machines.
However, we user lsrunase to have admin rights on the remote machine.
Regards