I want to install Windows service pack for machines in my network running Kaspersky antivirus.Could i deploy Wndows service pack using Kaspersky Adminkit?

You can deploy all Applications (*.exe, *.bat, *.cmd) with the AdminKit

But could I do it as a silent installation like deploying kas workstation ? because we have to reboot the pc after install service pack.

You can create a batchfile.

Then you can add the command shutdown -r

I tried this for TightVNC.
It works but the installation process is lanched for the default user. So, any registry changes it makes
only apply for the default user and not for the real PC user.
I think it's possible to change the installation user to Adminstrator, but does this mean every PC
on witch I would like to deploy TightVNC should have the same Administrator password ?