The version 2.6 di TightVNC is an MSI and its deployment is highly customizable.
First of all you need to get the TightVNC-installer-2.5.2.pdf from their internet site.
As example to install the server part only and set a password I sued this command line in my K1000
/quiet /norestart ADDLOCAL=Server SET_USEVNCAUTHENTICATION=1 VALUE_OF_USEVNCAUTHENTICATION=1 SET_PASSWORD=1 VALUE_OF_PASSWORD=mainpass
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