Access is Denied XenApp 6.5 Windows 2008R2 when launching XenApp Published Apps.
This error has been posted several times already by other people, but I wasn’t able to quickly find the resolution when I searched for it.
Opening a XenApp published application resulted in an error, “Access is Denied”.
Same issue occurred when launching a published Desktop. “Access is denied”.
Here’s how to fix the Access is denied error.
Open RUN and type in Regedit. Click OK.
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Terminal Server\
Right click on Terminal Server, select new DWORD (32-bit) value.
Rename the Registry DWORD New Value #1 to IgnoreRegUserConfigErrors
Change the value of IgnoreRegUserConfigErrors from 0 to 1. Click OK.
Restart the Virtual machine and test launching a published application.
Additionally, you can chance the Kerberos MaxTokenSize and this should fix the issue also.
http://support.citrix.com/article/CTX138329
To resolve the issue, create a new REG_DWORD at the following registry path on the server to increase the Kerberos MaxTokenSize:
Caution! Refer to the Disclaimer at the end of this article before using Registry Editor.
HKLM\System\CurrentControlSet\Control\Lsa\Kerberos\Parameters
Name: MaxTokenSize
Type: REG_DWORD
Value: 48000 (Decimal)
Note: After modifying the registry, restart the server.
MaxTokenSize registry entry to multiple computers-