Reference for the ICA/HDX Online Plugin
http://support.citrix.com/proddocs/index.jsp?topic=/ica-settings/ica-settings-wrapper.html
How to configure Dazzle for Use with XenDesktop and Provisioning Services
http://support.citrix.com/article/CTX124932
How to Completely Uninstall a XenApp Receiver From Your System Drive and Registry
http://support.citrix.com/article/CTX325140