Citrix recently released Hotfix Rollup 04 for Citrix Presentation Server 4.5, xenApp 5.0 for Windows 2003. Pay attention BEFORE installing the Rollup 04 because it has some important requirements as already with Rollup 03.

• The Citrix License Server must be at version 11.6.1 to install this hotfix rollup pack.

• The Microsoft Visual C++ 2005 SP1 Redistributable Package (x86) must be installed on all servers before installing this hotfix rollup pack. This can be obtained from the Microsoft Web site.

• With CPS4.5 R02/CPS4.0 R05 Citrix introduced the Commandline Parameter Validation for XenApp, see Knowledge Center articles CTX117316 and CTX115245.

• The Suite Monitoring and Alerting (SMA) service used by the Access Management Console might not start after installing Hotfix Rollup Pack 3 and restarting the system. In order to fix this problem, you must upgrade the .NET version on the system to .NET 2.0 SP1.

• Before installing this hotfix rollup pack on servers licensed for Standard Edition, you must migrate those servers to Advanced Edition. Standard Edition was discontinued on Citrix Presentation Server 4.5; installing this hotfix rollup pack on servers licensed for Standard Edition might cause error message to appear.

• After you install this hotfix rollup pack, Presentation Server 4.5 licensing will be enforced for the Application Streaming feature available in the Enterprise and Platinum editions. As a result, this feature will start to consume Presentation Server licenses.

Download des Rollups unter:

• Hotfix Rollup Pack 4 for XenApp 5.0 and Presentation Server 4.5
  http://support.citrix.com/article/CTX119069