This registry fix enables clientname passthrough on a Citrix server. This helps when a user logs onto a Citrix Published desktop, then launches a published app from the published desktop. In this situation, 2 concurrent licenses can be used up because the user is logging onto 2 different published apps from 2 different clients.
By adding this registry key to the server that is servicing the Published desktop, the client name will passed through to the Citrix server where the published app is published from, hence only 1 Citrix concurrent license is used up.
32-BIT OS Key:
HKEY_LOCAL_MACHINE\SOFTWARE\Citrix\ICA Client\PASS THROUGH\”PASS THROUGH”=dword:00000001
64-BIT OS Key:
HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Citrix\ICA Client\PASS THROUGH\”PASS THROUGH”=dword:00000001