Excel VBA .add BASIC_SCRIPT modifiers

Hello

I am trying to use excel vba to add a script to the end of all the programs in a directory. I am stuck on the DmisCommands.Add(BASIC_SCRIPT, True).

Is there a modifier to specify the function/ and a modifier to add ARGs? And if possible where can I look up this information?

Set DmisCommand = DmisCommands.Add(BASIC_SCRIPT, True)
DmisCommand.Marked = True
DmisCommand.ID = "CS998"
retval = DmisCommand.PutText("C:\PC-DMIS\MKDIR.BAS", FILE_NAME, 1)