[vbscript] Run a vbscript from another vbscript

I saw the below code working. Simple, but I guess not documented. Anyone else used the 'Execute' command ?

   Dim body, my_script_file
   Set Fso = CreateObject("Scripting.FileSystemObject")


   Set my_script_file = fso.OpenTextFile(FILE)
   body = my_script_file.ReadAll
    my_script_file.Close

    Execute body