Netweaver Secure Login Client - Disable (Status) Messages ?

Hello. we have configured SAP Secure Login Client 1.0 to work with X.509 Certificates. Everything is working fine. But users are complaining about some status messages displayed by Secure Login Client. For example :

1)  Message "Host not found" when booting and no network is available or

2)  Message "Disclaimer notice" and "Authentication completed" during logon

Is there a way to disable these messages ? Maybe in the Registry oder GlobalClient.reg ?

Thanks,
Sebastian