Online open and download problem

Hi, In my course i launch a ppt animation from a button bu giving a action of launch a program/Document and mark on use a attach file and give the path of attach ppt animation and publish the course. Document is open and working fine on local machine but when i upload this course on web the file is nor open and error msg is shown a page can not find.can u help me what is the problem.plz help me out

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