I work for a large government agency, and we are experiencing the same error as well, but we have the added complexity of Citrix. Most of our servers run Server 2003 SP2 Enterprise. When you log into the server's console, a PDF from a network location launches fine, however a Softgrid package which contains a link the PDF produces the error (unless you have elevated domain privileges - and then it works fine). Using Citrix to launch the PDF via the Softgrid package produces the error consistently; using Citrix to launch the PDF via a network drive sometimes works, but randomly produces the error as well. Our security team will now allow us to disable Protected Mode (although I think on our last test, even that didn't resolve the error). Any help would be appreciated.
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