mshta vbscript:window.execScript("alert('hello world!');","javascript")

mshta javascript:window.execScript("msgBox('hello world!'):window.close","vbs")

mshta vbscript:msgbox("該干活了，伙計!",64,"提示")(window.close)
mshta vbscript:CreateObject("Wscript.Shell").popup("該干活了，伙計！",7,"提示",64)(window.close)

mshta vbscript:execute("msgbox ""one BOX"":msgbox ""two BOX"":window.close")

mshta vbscript:createobject("sapi.spvoice").speak("Good luck")(window.close)