[ANDYru]

/NoStart - Do not start Skype with windows
/NoWpFinished - Install Skype as normal just skip the last finished page
/SILENT, /VERYSILENT - When Setup is silent the wizard and the background window are not displayed but the installation progress window is. When a setup is very silent this installation progress window is not displayed.
/NOCANCEL - Prevents the user from cancelling during the installation process, by disabling the Cancel button and ignoring clicks on the close button. Useful along with /SILENT.
/LANG=language Specifies the language to use.
/DIR="x:\dirname" - install dir
/NOICONS - no icons

пример Skype.exe /lang=en /verysilent /NoWpFinished /NoStart