Instead of "download", I think you mean "install".
See what happens when you reinstall the .NET 3.5 Framework.
http://www.microsoft.com/downloads/d...displaylang=en
Do a "repair" or "force" install if the option is available. I don't remember what choices are given when installing. I've not installed .NET in many months.
UPDATE:
Your PM seems to indicate the problem is resolved, the item being installed is not actually needed to run the software. Therefore I would not mess with .NET anymore.