CTX: Citrix Optimizations

Turn on Slow-Start Load Balancing
HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\IMA\LMS UseILB = REG_DWORD: 1 Reference Citrix Article CTX108645

Using custom, Office and system ADM templates, implement the following user optimizations via GPO:
* Disable Active Desktop
* Reduce cursor blink rate to 1.5 seconds (1500)
* Reduce MenuShowDelay to 100 ms
* Set sound scheme to “No Sounds”
* Disable Word background grammar and spell checking
* Disable Office Assistant and Office Assistant Animation/Sounds
*Always Show Full Menu Items and Disable the Show menu delay

Network performance and system usage HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\Explorer NoRemoteRecursiveEvents = REG_DWORD: 1
Reference Microsoft Article 885189

Memory Optimization HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management LargeSystemCache = REG_DWORD: 1

This setting allocates additional memory to the File System Cache. Starting with Windows Server 2003, Microsoft moved the registry from Paged Pool RAM and into the File System Cache. Running out of File System Cache will prevent users’ ntuser.dat files (profiles) from loading. Setting this registry key to 1 is the same clicking the System Cache button shown in the following screen shot:

Additionally, Citrix recommends settings the Visual Effects tab to adjust for best performance as shown below: The following registry settings are optimizations that Citrix recommends be applied to Terminal Servers in order to optimize performance and allow a maximum number of users to be supported.

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Configuration Manager]
"RegistryLazyFlushInterval"=dword:0000003c

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Lanmanserver\Parameters]
"MaxWorkItems"=dword:00002EE0
"MaxMpxCt"=dword:00000800
"MaxRawWorkItems"=dword:00000200
"MaxFreeConnections"=dword:00000064
"MinFreeConnections"=dword:00000020

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Lanmanworkstation\Parameters]
"MaxCmds"=dword:00000800

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\MRxSmb\Parameters]
"MultiUserEnabled"=dword:00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management]
"DisablePagingExecutive"=dword:00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Windows]
"ErrorMode"=dword:00000002

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem]
"NtfsDisableLastAccessUpdate"=dword:00000001

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Providers]
"NetPopup"=dword:00000000

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print\Providers]
"Eventlog"=dword:00000001