I suppose you know the answer by now but just in case: No. you cannot.
Cheers Euclid
Edit: Actually there may be a way if you don't mind to use lua. In ui > core > lua > vmdef.lua the command os.execute is listed and using that, for example os.execute[["c:\path\to\your\file.bat"]] could work. Not tested it myself, though. E.
"In any special doctrine of nature there can be only as much proper science as there is mathematics therein.”
- Immanuel Kant (1724-1804), Metaphysical Foundations of the Science of Nature, 4:470, 1786