Recently I was having issues installing the Hotfixes XA650W2K8R2X64001 and XA650W2K8R2X64002 for XenApp 6.5  I keep getting the error “Installation ended prematurely because of an error” and in the event log I would get the below;

“Product: Citrix XenApp 6.5 – Update ‘XA650W2K8R2X64001’ could not be installed. Error code 1603. Windows Installer can create logs to help troubleshoot issues with installing software packages. Use the following link for instructions on turning on logging support: “


After generating a verbose install log I noticed that there was some sort of certificate error

MSI (s) (18:34) 11:53:31:692: Doing action: UninstallCertificates
Action 11:53:31: UninstallCertificates.
Action start 11:53:31: UninstallCertificates.
MSI (s) (18:34) 11:53:31:695: Note: 1: 2235 2: 3: ExtendedType 4: SELECT Action,Type,Source,Target, NULL, ExtendedType FROM CustomAction WHERE Action = ‘UninstallCertificates’
MSI (s) (18:34) 11:53:31:695: Transforming table Binary.

MSI (s) (18:34) 11:53:31:695: Transforming table Binary.

MSI (s) (18:34) 11:53:31:695: Note: 1: 2262 2: Binary 3: -2147287038
MSI (s) (18:04) 11:53:31:702: Invoking remote custom action. DLL: C:\Windows\Installer\MSI34DA.tmp, Entrypoint: UninstallCertificates
MSI (s) (18:04) 11:53:31:800: Leaked MSIHANDLE (61806) of type 790531 for thread 5160
MSI (s) (18:04) 11:53:31:800: Leaked MSIHANDLE (61805) of type 790540 for thread 5160
MSI (s) (18:04) 11:53:31:800: Leaked MSIHANDLE (61803) of type 790541 for thread 5160
MSI (s) (18:04) 11:53:31:800: Note: 1: 2769 2: UninstallCertificates 3: 3
MSI (s) (18:04) 11:53:31:800: Transforming table Error.

MSI (s) (18:04) 11:53:31:801: Transforming table Error.

MSI (s) (18:04) 11:53:31:801: Note: 1: 2262 2: Error 3: -2147287038
DEBUG: Error 2769: Custom Action UninstallCertificates did not close 3 MSIHANDLEs.
Internal Error 2769. UninstallCertificates, 3
CustomAction UninstallCertificates returned actual error code 1603 (note this may not be 100% accurate if translation happened inside sandbox)
Action ended 11:53:31: UninstallCertificates. Return value 3.

With a lot of great help from the guys on the Citrix Forum in turned the problem was to do with a Citrix code signing certificate which had expired on the 12th of November 2011 and had something to do with PowerShell



  • On the effect server(s) open an MMC console (Start => Run => MMC)
  • File => Add/Remove Snap-in
  • Add Certificates and select “Computer account” when prompted, OK
  • Expand Certificates => Trusted Publishers => Certificates
  • Delete All of the expired Citrix Certificates
  • Try running the Hotfix install again

The hotfix in my case re-added the same expired certificate, hopefully Citrix will sort this out soon



Citrix have now released an update to fix this issue


Author: Phil Eddies

I am an IT Operations Manager, managing all aspects of the IT infrastructure and service for a mid sized UK based company. I have been working full time in IT since 2001 in 1st to 3rd line and System Administration roles. MCSA, MCSE, CCNA, Citrix CCA