リファレンス、WshArguments オブジェクト、Named, Unnamed プロパティ

everyday WSH 
WScript.Echo WScript.Arguments.Count
WScript.Echo WScript.Arguments.Named.Count
WScript.Echo WScript.Arguments.Unnamed.Count

For Each x in WScript.Arguments.Named
  WScript.Echo x & " = " & WScript.Arguments.Named(x)
Next

For Each x in WScript.Arguments.Unnamed
  WScript.Echo x
Next

For i = 0 to WScript.Arguments.Unnamed.Count - 1
  WScript.Echo WScript.Arguments.Unnamed(i)
Next

で、

C:\tmp\scripts\everyday_VBScript>wscript 2011120300.vbs /c:"WSH is a wonderful thing" /s:"scripts are wonderful" foo bar baz

などを入力

Count メソッドでの説明はめちゃくちゃな気が？