Citrix: Changing XML port number

To determine which port is being used, either look in the Citrix Access Management Console or locate the following registry key (assuming IIS port sharing is not being used):

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\CtxHttp

Value: "TcpPort"

Unregistering the XML Service

Open a command Prompt window.
Run ctxxmlss /u (This command unregisters the Citrix XML Service and marks it for deletion).

Registering the XML Service on a port other than sharing with IIS

Unregister the service using the previous instructions.
Open a command Prompt window.
Run ctxxmlss /r[Port Number] (Notice that there is no space between the switch “/r” and the port number.
Open the service control manager and manually start the Citrix XML Service.

Note: During the unregister/register process you might see the below error message. There is no need to reboot the server. Just run the Unregister command again, go to services and attempt to start the service then Reregister the service.

Could not start the Citrix XML Service service on Local Computer.

Error 1060: The specified service does not exist as an installed service.