https://www.manageengine.com/products/desktop-central/patch-management/PDF-XChange-Viewer-patches.html
PDF-XChange Viewer Updates | ManageEngine Desktop Central
Desktop Central is a Windows Desktop Management Software for managing desktops in LAN and across WAN from a central location. It provides Software Deployment,...
pdf xchange viewerupdatesmanageenginedesktopcentral
https://portableapps.com/node/35352
Firefox Portable Plugins: PDF-XChange Viewer Addin update (DEMO Version problem) | PortableApps.com
I'd like to give this information here, because I searched for months for a solution and only now found the way for this user case: Firefox Portable (v16.0.2)...
pdf xchange viewer