I recently stumbled uppon a really weired problem with 32bit icon support in XenApp. Under certain circumstances the AMC won’t show the option for 32bit icon support in the farm properties even if all prerequisites are perfectly met. We found out the reason for that behaviour only by accident.

The problem can be seen with all versions of Presentation Server 4.5 and XenApp 5.0 for w2k3 as well as for w2k8.

If the problem hits you, the farm properties won’t show the option for 32bit icon support, but there will only be a blank space 🙁

No 32bit icon support in the AMC

The reason for this odd behaviour can be found in the configuration of the farm-discovery. I sometimes use LOCALHOST as the hostname for discovery. This is helpful in situations where you have roaming profiles and IIS is not installed on the XenApp servers.

But if you configure discovery that way there will be no 32bit icon option in the AMC.

Configured with LOCALHOST

If you change the discovery option back to the local server

Konfiguriert mit "Local Server"

the missing option reappeares again.

32bit icon support available

You can toggle that behaviour as you like. Admittedly this is not a common problem but it is odd and if you happen to see it, you will be warned…