Fred Donovan from Citrix have updated the whitepaper - Communication Ports Used by Citrix Technologies to version 1.5 (April 2011)

Overview

This document provides an overview of ports that are used by Citrix components and must be considered as part of Virtual Computing architecture, especially if communication traffic traverses network components such as firewalls or proxy servers, where ports must be opened to ensure communication flow.

References

The assignments are listed by the Internet Assigned Numbers Authority (IANA), updated regularly, and revised when new information is available and new assignments are made. The specific location of the port numbers list is available at the following Web site: http://www.iana.org/assignments/port-numbers.

Microsoft Article “Network Ports Used by Key Microsoft Server Products”.

Microsoft Article ID 832017 “Service overview and network port requirements for the Windows Server system”.

Download WhitePaper - Communication Ports Used by Citrix Technologies here

Summary
This article describes how to create an ICA Launch file for use in the XenDesktop’s High Availability mode.

Requirements
XenDesktop Version 5.0 or later

A desktop with the Virtual Desktop Agent Version 5.0 installed and with the High Availability feature enabled
The IP address of this desktop
The credentials of the user allowed to connect to this desktop, which includes:

• Domain name
• User logon name
• User password

Procedure

1. Open Notepad on the client computer and copy and paste the Minimal ICA Launch file from below.
2. Change the following fields:

   a. USER_LOGON_NAME_HERE to the actual user’s logon name
   b. USER_PASSWORD_HERE to the actual user’s clear text password
   c. DOMAIN_NAME_HERE to the actual domain name
   d. DESKTOP_IP_ADDRESS_HERE to the desktop’s IP address

3. Save the file with a relevant name and with an .ICA extension to an easy to find location on the client’s computer.

Minimal ICA Launch file content:

[Encoding]
InputEncoding=UTF8

[ApplicationServers]
Desktop=

[Desktop]
Username=USER_LOGON_NAME_HERE
Clearpassword=USER_PASSWORD_HERE
Domain=DOMAIN_NAME_HERE

Address=DESKTOP_IP_ADDRESS_HERE:1494
AutologonAllowed=ON
BrowserProtocol=HTTPonTCP
CGPAddress=*:2598

TransportDriver=TCP/IP

ClientAudio=On
DesiredColor=8
DesiredHRES=1024
DesiredVRES=768
DoNotUseDefaultCSL=On

FontSmoothingType=0
InitialProgram=#Desktop
LPWD=31
Launcher=WI
LocHttpBrowserAddress=!

Read the full knowledge article here

Citrix have released Citrix Webinterface 5.4 for Windows & Web Interface 5.4 for Java Application Servers.

New in Citrix Webinterface 5.4 for Windows Release

The Web Interface offers the following new enhancements and features in this release:

Updated end user interface. The layout and color scheme for end users has been updated to help improve navigation and readability.

Session sharing for VM hosted applications. The Web Interface now supports session sharing for Virtual Machine (VM) hosted apps. This feature is only available for seamless applications and non-anonymous users.

Multiple desktop access for users. In previous versions of the Web Interface, users could only access a single instance of a desktop per desktop group. Now, users can access multiple instances of desktops in desktop groups.

Improved smart card support for Access Gateway. Smart card authentication to the Web Interface is now compatible with more environments. The Web Interface can now accept User Principal Names (UPNs) from Access Gateway as well as the user name and domain. Additionally, the Web Interface has been updated to comply with FIPS. This new functionality can only be used with the pass-through authentication for smart card option and you must be logged on as a domain administrator.

Ability to set additional default values. Administrators can configure default values for all bandwidth-related settings, such as audio quality, color depth, bandwidth profile, printer mapping, and window size.

ICA File Signing. The Web Interface digitally signs generated ICA files, to allow compatible ICA clients to validate that the file originates from a trusted source.

Download Citrix Webinterface 5.4 for Windows here
Download Citrix Webinterface 5.4 for Java Application Servers here

Modify the Template.ica file or default.ica with the following information

In Web Interface 5.3

Edit the default.ica file located \Inetpub\wwwroot\Citrix\XenApp\conf

In the [Application] section, add:

ZLKeyboardMode=1
ZLMouseMode=1

Now, when you open ICA Connection Center, you see SpeedScreen Latency Reduction = ON.

Make Sure that Speedscreen Latency Reduction is enabled on the Server side, as well.

Symptoms

Applications fail to launch on a windows 2008 server when .NET 1.1.x or .NET 4.0 is installed on the Web Interface server. When the user clicks to launch the published application, nothing happens. The browser might briefly show a request, however, the Citrix ICA client never attempts to connect.

Read more about the workaround -> http://support.citrix.com/article/CTX123921