Citrix License Server 11.10 installation hang 7 Comments

I had to update a Windows 2003 - Citrix License Server at one customer place and I wasn't ready for that... For the first time of my Citrix life I had to troubleshoot an upgrade process.... I have try to uninstall / install, update nothing allowed me to complete the installation of the Citrix License Server 11.10 on a Windows 2003 server... The installation was just stuck and never ended the installation process. So I had to understand why this installation was stuck, in the event log I had this message : "A provider, Citrix_GTLicensingProv, has been registered in the WMI namespace, Root\CitrixLicensing, to use the LocalSystem account. This account is privileged and the provider may cause a security violation if it doe not correctly impersonate user requests." Weird message and I'm not sure it's related to the installation issue I have so I chose to use the good old msiexec command line to enable verbose logfile of the installation process : And surprisingly I got useful information ! The installer wasn't able to process the creation of a service (sc.exe command) and I found this Microsoft Security Bulletin : MS09-012 The I downloaded the KB956572 and installed it on the License Server. Then the installation went fine... I lost half of a day trying to understand what was wrong... Resources : MS09-012 - Vulnerabilities in Windows Could Allow Elevation of Privilege (959454) Security Update for Windows Server 2003 (KB956572) Citrix License Server 11.10 download Vulnerabilities in Windows Could Allow Elevation of Privilege (959454)