Delete SecureWorkstation or Uninstall SecureLogin 6.0 silent modus

Hello!

We have installed SecureLogin 6.0 with SecureWorkstation.

We want upgrade SecureLogin 6.0 to SecureLogin 6.1 without
SecureWorkstation.

So I have to uninstall SecureLogin 6.0 in silent modus, but setup.exe
/uninstall is demanding a Yes-Button Click from User.
Are there any parameters for Silent Modus for uninstall ?

Or I have to delete only SecureWorkstation from the package SecureLogin
6.0 ! But i have no solution for this !

Maybe anyone can help!