Windows Server 2008 R2 - When svchost.exe memory-leaks Outlook does not load properly

Question

Hi all,
We have a server which runs Windows Server 2008 R2, fully updated, and acts as a Terminal Server (Citrix XenApp 6.5).
In the past couple months we have had problems with svchost.exe leaking memory, growing to 2-3GB of RAM usage. Sometimes is occurs with weeks between the incidents, sometimes days. To solve the issue we have to reboot the server.
When this occurs, Outlook (fully updated) doesn't start for any users at all. Outlook doesn't continue from the "Loading profile.."-stage. The users who already has Outlook started doesn't have any problems, unless they close Outlook ;) . 
The svchost.exe is the one which runs the services:
NSI
WinHttpAutoProxySvc
W32Time
Netprofm
FontCache
EventSystem
We've patched the server with KB2847346 but with no result. Patch KB2950358 is not applicable..
Any ideas?

Answer 1

svchost is hosting multiple services. when the issue occurs you can use sysinternals procmon (or enable the command line column in task manager process tab) to view to determine which service is using that much memory.
MCP/MCSA/MCTS/MCITP
Did you read my whole post, or did you just misunderstand the part were I wrote:
The svchost.exe is the one which runs the services:
NSI
WinHttpAutoProxySvc
W32Time
Netprofm
FontCache
EventSystem"
I know that svchost.exe runs ALOT of services, so when the problem occurred I checked which services the specific svchost.exe runs. Everytime it happens the svchost.exe (which leaks and has 2-3GB mem usage) runs this specific services.