I am sorry but Powerpoint is not supported in v5. The Microsoft COM interop file which easyslides uses has not been updated by Microsoft since 2007. This means newer version powerpoint slides will not be displayed properly, with transitions not working and timings off. It just wasn’t reliable enough and therefore I removed the functionality from v5.
If you don’t have powerpoint software, Microsoft provides a free online version. You can view and edit powerpoint files, so long as you have a Microsoft account which is free. Details are at:-