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PowerPoint 2007 files don't download correctly from a Web Server, open as zip files
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pptm file extension download link - IE sees the file as a zip
I have created a link on a dnn page that points to a .pptm file (powerPoint). When you click it to download using Firefox, it sends it correctly to the browser as a .pptm file (of course). When using IE8, it sends the file as a .zip file.
I have found references to this suggesting it is an incorrect mime type in IIS. I checked, and the
mime type I have seen to use is there:
application/vnd.ms-powerpo
What gives? Does anyone know why this is happening (other than the user should not be using IE in the first place!)?
We are using server 2008 / IIS7
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Answers
Thanks guys, but I had already seen those links. I searched before I asked, but what those are telling me to do is to add the mime type. . .the mime type is already there!
As stated in the question, the mime type in IIS for pptm is:
application/vnd.ms-powerpo
But the files are still opening as a zip (only in IE). . .
I had the same problem.
I think it's also a security issue of even if the first reason is that office 2007 files are in zip format.
A client-side solution whichworks for me is adding the site as trusted to lower the security level
Finding a server-side solution is very hard, there are many open discussion around this issue.
A little update to my previous post:
in ie the problem can be solved with right myme types, but there is also a dnn issue !
if you link the file (i suppose through module links) using "file" option the link will be .../linkclick.aspx?... and this seems to be the problem !
set up the link with "url" option specifyng the full url, for example:
http://localhost/d
it will open with the right application.
When ie try to download linckclick.aspx?... i think it try to open the file by its content, it doesn't know the extension, and because of office 2007 files are all in zip format ie try to open it as a compressed file.
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by: jcimarronPosted on 2009-08-14 at 12:12:27ID: 25101384
esullivan1--Perhaps of help
http://msdn.microsoft.com/
http://www.webdeveloper.co