I am trying to call my excel macro using vbs. Here is a snippet of my code.
Set objExcel = CreateObject(\"Excel.Application\")
Set objWorkbook = objExcel.W
To add to Siddhart's answer - you can load the addins you require in a VBScript like this:
objExcel.RegisterXLL("analys32.xll") 'For XLL addins
objExcel.Workbooks.Open(objExcel.LibraryPath & "\analysis\atpvbaen.xla") 'For standard XLA addins
objExcel.Workbooks.Open("C:\Program Files\MyAddins\MyAddin.xla") 'for custom XLA addins