How To Fix Applications Failing To Launch With Citrix Receiver 3.0

How To Fix Applications Failing To Launch With Citrix Receiver 3.0

Do you have a workstation that intermittently boots up with both the black Citrix Receiver icon and the old blue Program Neighborhood Agent/Online Plugin icon? And does it fail to launch published applications?

This is a very common problem that affects both Windows XP and Windows 7 machines. Sometimes when the workstation boots, only the Citrix Receiver icon shows up and apps launch fine. But occasionally it will boot with both the Receiver icon and the blue PNAgent icon, and apps will just not launch.

A typical workaround for this has involved terminating the pnamain.exe process, thus killing the blue PNAgent icon, and allowing apps to launch successfully. But this manual workaround gets old after a while.

Your results may vary, but I have found that deleting the registry keys HKEY_CURRENT_USER\Software\Citrix\ICA Client\Engine\Configuration and HKLM\Software\Citrix\ICA Client\Engine\Configuration (on 64-bit systems: HKLM\Software\Wow6432Node\Citrix\ICA Client\Engine\Configuration) will allow applications to launch consistently, and will cause both the Receiver and PNAgent icons to appear consistently and behave normally.

If you have any workstations with this issue, try deleting the above keys and let me know what kind of results you get.

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6 thoughts on “How To Fix Applications Failing To Launch With Citrix Receiver 3.0

  1. We have the issue and removed the keys but Receiver just ends up regenerating these keys again.

  2. Normally we have come across this issue after installing Citrix Receiver 3.0 on computer that already had Citrix Online Plugin 12.0.x.

    A long winded fix is to uninstall Citrix Receiver 3.0, restart, install Citrix Online Plugin 12.0.x, restart, uninstall Citrix Online Plugin 12.0.x, restart, delete [HKEY_CURRENT_USER\Software\Citrix\ and [HKEY_LOCAL_MACHINE\Software\Citrix\, install Citrix Receiver 3.0 and one more restart. Al works. FYI – we are using the Citrix AD scripts to install/uninstall.

  3. We are also having the same issue. Killing pnamain.exe fixes the issues until the computer is restarted. We don’t have the Configuration key either.

    I did a compare between some that worked and some that didn’t and the ones that didn’t work had the below two keys. Since deleting them and restarting it has worked every time so far :mrgreen:



  4. CitrixReceiverEnterprise.exe /silent ADDLOCAL=”ICA_Client,SSON,USB,DesktopViewer,Flash,PN_Agent,Vd3d” SERVER_LOCATION=http://serverfqdn/Citrix/PNAgent/config.xml

    we are using this for our version 13 install and we do not have that registry key but we are experiencing the same issues as described…

    1. Matt,

      I would uninstall the client, then go back and check Program Files, Common Files, and AppData folders and manually delete any “ICA Client” and “Receiver” folders. Then make sure those keys are gone. Reinstall Receiver, then try launching applications again.

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