Using Xenapp 6.5 and a Wyse Terminal

Posted on 2012-03-26
Last Modified: 2012-03-27
Hi all

This may sound like a dumb question, but here it goes.  We just installed Xenapp 6.5 and we plan to use it with our Wyse Thin Clients that already have a built in ICA connection.  When I configured the ICA connection to my Citrix Web Interface, I could not connect.  I kept getting a protocol error.  But when I connected using the ICA to the IP address of the Xenapp server, I was able to use it just like a RDP connection.  Now here is my question, is this the correct way to use it.  For some reason and after my classes, I thought they would be accessing the apps through the Web interface.  But if they just need to access like they would a regular terminal server, then that would be just fine; I just want to make sure this is the correct way.
Question by:Salonge
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LVL 31

Expert Comment

by:Cláudio Rodrigues
ID: 37770846
The web interface is simply a delivery mechanism. It creates .ICA files on the fly, based on your credentials, and once you click on them, the text files (.ICA are simply that) are parsed by the local application that knows what to do with that. That application is the Citrix client.
That means the OS running on the endpoint (i.e. the thinclient) has to know/understand what to do with such files (pass it to the ICA client).
Depending on the OS and ICA Client version this may not work.
Also depending on the ICA Client you can actually tell it to retrieve the list of apps from the XML broker (the same you pointed the Web Interface to).
Keep in mind as well that thin clients, regardless of the vendor/model, do run some sort of OS that will require an update in order to run the latest and greatest Citrix client.
Problem is in certain cases the update will not fit on the flash RAM for example what means you reached the end of life for that device and will have to buy a newer model in order to leverage the latest and greatest features Citrix now has.
Knowing the model of the thin client would help to give you a more accurate answer. :-)

Cláudio Rodrigues
Microsoft MVP - RDS
Citrix CTP

Author Comment

ID: 37771504
These are 3125's.  I may need to call Vecmar to see if these are supported.
LVL 31

Accepted Solution

Cláudio Rodrigues earned 500 total points
ID: 37771812
Oh boy these are VERY old models.
As you can see here:

The latest ICA client available for these is ICA 8.15. Very old as the Win32 client as of today is on 13.X already.

Not sure what this version even supports anymore. Sure direct ICA connection as you are doing should work (as you could test) but definitely it will not work with the Web Interface. What you can try doing is where you can create a connection check if there is an option to tell the client where the farm is and then point it to a server that has the XML service running (all servers up to XenApp 6.0 run it for sure). That should allow you to see the list of published applications available.


Cláudio Rodrigues
Microsoft MVP - RDS
Citrix CTP

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