After installing Adobe Reader 9 on a test Citrix server. I received the following error:


This is why the error occurs:

The affected user has a redirected Application Data folder and as a result the network path containing the Application Data uses a UNC path that begins with \\. This UNC path causes Acrobat 9.0 or Adobe Reader 9.0 to incorrectly parse the Application Data path and give the error message.

The solution is easy:


Please update Acrobat and/or Reader to Adobe Acrobat 9.1 or Adobe Reader 9.1.

Adobe Reader

Get Adobe Reader 9.1 from the Adobe website at

More info can be found here: KB404597


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