Terminal Server 2008 R2 - Adobe 9.0 CPU Usage

We are currently running 5 Windows 2008 R2 64bit, RDS severs with 200 users. We are having a major problem with adobe reader and running on these servers Every instance of adobe reader is taking 11-14% of the CPU. So once 5-6 people get on the CPU is maxed and starts slowing things down.
Hardware
DL360 G6
2 75 GB drives Mirrored
16.0 GB Ram
Intel(R) Xeon(R) CPU E5506 @2.13GHZ (@ processors)
The updater is disabled and is no running.
We had adobe Professional 6 installed but that was removed off one of the servers in hope that was causing the issue. No luck the one server only has adobe reader and is still having issues.
Any help would be greatly appreciated.

Just adding here in the hope it might help someone in the future. The high CPU usage occurs because you are using redirected Application Data folders in your Terminal Services/RDS/Citrix environment. As of v9.x (and maybe 8.6) Adobe state (hidden in the release notes) that redirected AppData folders are no longer supported. I've tested versions from 9.0 to 9.3.3 so far and they all exhibit this behaviour.
From my reading around the web it looks like people have suggested that when Reader starts it checks it has write access to not only the AppData\Adobe folder, but also to the root of the AppData path. In most cases this is a server name as part of a UNC path and the check will fail. I have also tested redirecting by GPO to a mapped drive (the users homedrive on H:\) but the path gets expanded to the full UNC path when being parsed by the app so the same CPU consumption seems to happen.
Only fixes I've seen work are downgrading to a prior version (prior to 8.6 according to some on the web), or stopping the AppData folder redirection and setting it back to be part of the profile path. When stopping AppData redirection I have also set the AppData folder to be excluded from the roaming profile via GPO, and use a Profile Management tool (e.g. Flex or Citrix Profile Management) to copy only the relevant parts of AppData to the network in an effort to prevent negatively impacting logon times too much.
Hope this helps.
Azza.

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TechNet Webcast: Terminal Services Easy Print (Level 300)
https://msevents.microsoft.com/cui/WebCastEventDetails.aspx?culture=en-US&EventID=1032355423&CountryCode=US
Is this solution acceptable in your environment? Thanks.
Lionel Chen
TechNet
Subscriber Support in forum
If you have any feedback on our support, please contact
[email protected]
This posting is provided "AS IS" with no warranties, and confers no rights.

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