XXXp, по аналогии поста
#18 не выходит?..
Код:

Set wss = WScript.CreateObject("WScript.Shell")
Set foo = wss.Exec("plink -v -ssh -l admin -pw admin 192.168.1.1")
WScript.Sleep(1000)
foo.StdIn.Write("/usr/local/etc/script.sh"& vbLF)
WScript.Sleep(1000)
foo.StdIn.WriteLine("LOGOUT")
WScript.Echo(foo.StdOut.ReadAll())