word/excel viewer that's an .exe file

I have a situation where we have a CD of Word and Excel documents that need to be opened on computers that only have a base Windows XP/2000/98 install - no Office apps.  Without going into the reasons behind this it should be assumed by whoever will  try to answer this question 1) no office apps are to be installed on these computers 2) it is not practical to PDF the documents in question 3) the documents on the CD are not to be transferred to the computers and 4) no on-line viewer that would do the task e.g. browse to some kind of Web site that might view the files - can be employed .  While we can use IE from the desktop to 'view' the documents on the CD the original formatting will be lost.  What we would like would be a Word/Excel viewer that is an .exe file that could be placed on the CD that could be used to view the files with their normal formatting.