Customize Adobe Reader X to work on XenApp 5 and 6 x86 and x64
If you install Adobe Reader X on XenApp without making the necessary modification you will end up with error messages looking like this
If you goanna search on Google you will find this Adobe article that makes the statement that Adobe Reader X is not supported on Citrix in Protected Mode
http://kb2.adobe.com/cps/860/cpsid_86063.html
But if you take a look at the Acrobat Enterprise Administration Guide Chapter 8.
http://kb2.adobe.com/cps/837/cpsid_83709/attachments/Acrobat_Enterprise_Administration.pdf
You wil see that it is possible to disable protected mode.
Protected Mode can be locked as enabled or disabled as follows:
1. Go to HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Adobe\<product name>\<version>\ FeatureLockDown.
2. Right click and choose New > DWORD Value.
3. Create bProtectedMode.
4. Right click on the key and choose Modify.
5. Set the value to 0.
Then create a custom MST with the Adobe Reader X Customization Wizard.
Choose the settings you want for your organization and add de registry key as in picture 4.
After that you will see its working on Xenapp 5-6 x86 and x64
Using Reader X with Protected Mode disabled is in fact less secure than using Reader 9.x. It is Adobe’s current policy that when they release a patch for Reader 9.x, they will delay the release of the same patch for Reader X. They are assuming that Protected Mode is enabled and will prevent successful exploit of the vulnerability. This leaves users of Reader X with Protected Mode disabled exposed until the next quarterly update. There will be no out-of-band patches released for Reader X.
Both Reader’s Protected Mode and Acrobat’s Protected View as of 10.1 will support Citrix and Windows Terminal Server (June 2011).