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What is Citrix?

Citrix is a means of accessing NIEHS applications such as Filemaker Pro, Adobe Acrobat, etc. through a fully functional virtual desktop environment. Citrix sessions transparently mimic nearly all every-day functionality for desktop computers. Citrix offers access to various applications and documents stored on NIEHS central storage without the need to create a VPN session. Some of the applications that are accessible via Citrix include but are not limited to Microsoft Office 2007/2010, Filemaker Pro and Internet Explorer 8. Citrix can also be used to access Library "Journals" that are hosted at non-NIEHS locations.

Citrix access is provided through a web interface which requires a small plug-in, called the XenApp plug-in, to be installed on the machine (administrative rights are required to complete the installation). Most NIEHS owned computers should have the plug-in installed on the computer by default.

The Citrix web interface is located here: Citrix XenApp Use your NIH username and password to login.

If the plug-in needs to be installed on the computer, a Warning Notice will be visible "Click install to access your applications", as well as a button to download and install the plug-in.

Citrix XenApp Install selected

Using Citrix

  1. Go to
  2. Enter your NIH username and password in the proper fields, as shown in the highlighted area of the image below. Ensure that the Domain is NIH and click on the “Log On” button to proceed.

    NIEHS Citrix login window

  3. The Citrix Web Portal screen (shown below) will appear once you have successfully logged in. Select the appropriate desktop.

    Citrix Desktops

  4. The Citrix Online Plug-in will begin to launch the Citrix desktop. The government computer warning box can be seen in the background, as shown below.

    Launching Citrix desktop

  5. Click the "OK" button on the "Warning" dialog box.
  6. Your Citrix desktop will appear on your screen. You will have access to files you have stored on central storage as well as other network resources like email, printers, and group/project files stored on the central storage system.

    Citrix desktop

More Information

Is your connection to Citrix SLOW? Certain issues can arise when you use Citrix in tandem with Remote Access Virtual Private Network (VPN). Here are some tips to avoid those issues:

  • Be sure to remove your personal identification verification (PIV) card prior to logging in to Citrix. Users have reported that if they have previously logged in to Remote Access VPN using their PIV card, then try to access Citrix, they experience very slow connection to Citrix. If you simply remove your PIV card (which will end your Remote Access session) Citrix will run at full speed.
  • Citrix access is provided through a web interface and does not rely on VPN Software. For more information on Remote Access through VPN see the VPN page.

Citrix Tabs Offer Options: Note that when you launch Citrix, there are two tabs at the top of the Citrix window titled, Applications, and Desktops. Different options are offered under each of these tabs. The Applications tab allows you to launch approved NIEHS applications such as Microsoft Office, Microsoft Outlook and Internet Explorer. Launching any of these applications will allow you to browse to your network files and emails. The Desktops tab allows you to launch a "virtual desktop" which will resemble your NIEHS desktop. From this screen, you can browse to your network files, applications, emails, etc. Both tabs allow access to the NIEHS network, but present your applications in different ways:

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