This article I found while scouring the web 'edit the InfoPath template within the document library in SharePoint > Form Options > Compatibility, change it to InfoPath filler form 2010. It still works for me and I have version 2013, so now it allows users with older versions to use it as well. I confirmed with the affected users that they can now access the form' I am not sure if this will work as I do not have the options when I get into the properties. I need a solution where the form will work in both users of MSO 2010 and users of MSO 2013. Does anyone have a solution?