Downloading Collaboration Documents with SSL

SSL is great for protecting HTTP traffic, particularly if your portal is open to the Internet. But in some circumstances, it can cause issues with file downloads. If you get a blank page when you try to download a file (particularly using Collaboration Server), or an error that says something like:

The path or file name for C:Documents and SettingsuserLocal SettingsTemporary Internet FilesContent.IE5CBEFMKfile[1].ppt is invalid. Please check that the path and file name are correct.

... Chances are this is caused by an Internet Explorer option in Tools: Internet Options: Advanced called "Do not save encrypted files to disk":

Because the portal is returning encrypted files over SSL, the browser is not saving them to a temporary location so they can be opened locally. Uncheck that box and you should be good to go!

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