JaWi is right, all you need there are some double or single quotes around the path for it to be interpreted correctly. As a note to save you some time though, I'm using a Win2k box at work, and if you have Explorer open, simply drag the file or directory icon that you want send to the script onto the command line, and Windows puts double quotes around the full path/file name.
Handy! :)
--edit: using! I'm USING! I currently am not, in fact, a verb present tense. :)