This can be achieved in a number of ways.

1) Adding a registry key which disables the Vaul Cache in Citrix (HKEY_CURRENT_USER\SOFTWARE\KVS\Enterprise Vault\Client\\OVEnabled and set the dword to 0);

2) Tweaking the Desktop Policy so that Vault Cache is made available only when:

a) Outlook is in Cached Mode for all profiles except those running in Citrix and 'Offline store required' is set to Yes in Desktop Policy as in HOWTO37745

b) Outlook does not connect via RPC over http except in profiles running in Citrix and 'RPC over HTTP restrictions' in Desktop Policy are set to disable Vault cache as in HOWTO37814

 

 

In this scenario, a user(s) may have multiple profiles across different machines or instances of Outlook. The user(s) can open Outlook from a laptop or a desktop and from Citrix session. What we want to achieve is to make sure users will not have the Vault Cache option available when logging into Citrix, but also to leave the options available when using other machines.