Download of Citrix Single Sign-On Plug-in 5.0.0.6684 was on the developer's website when we last checked. We cannot confirm if there is a free download of this software available. This free program was originally designed by Citrix Systems, Inc.
The following version: 5.0 is the most frequently downloaded one by the program users. Citrix Single Sign-On Plug-in lies within System Utilities, more precisely System Optimization. The program's installer files are generally known as pn.exe, pnagent.exe or ssoshell.exe etc. Citrix Single Sign-On Plug-in is suitable for 32-bit versions of Windows XP/XP Professional/7/8. We recommend checking the downloaded files with any free antivirus.
From the developer:
Single Sign-on Plug-in has been designed to work with all existing versions of Single Sign-on (previously Password Manager).This is a free, handy and easy to use software tool that supports Windows XP, Vista, Windows 7, Windows Server 2003, 2008 and 2008 R2.
You may want to check out more software, such as Citrix XenApp 11 Fix, Citrix Online Plug-in Web or Citrix Offline Plug-in, which might be similar to Citrix Single Sign-On Plug-in.
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