The sizes of our tunnelling and terminal controls varies by access method: RDP, VNC, Citrix ICA or native virtualization console. In addition the sizes vary by technology: ActiveX or Java.
You can look at the installed controls in Downloaded Program Files or Java Cached Applets to obtain the actual sizes. All of our components should be labeled as "Surgient URA", Microsoft RDP (redist), Citrix ICA of VNC so they should be easy to find.
As for how they are handled by AV. Our controls are signed using a Code Signing certificate from Verisign, so they can be scanned cleanly for the presence of malware or alteration, i.e. a hacked control would fail the certificate signing validation process.
Environments where ActiveX is disabled default to to Java. Users must have either ActiveX or Java working to access virtual labs.
As to the connection methods, these are combinatorial attempts at RDP, Citrix, using direct connections on their native ports (3339, 1494, etc) or if blocked, tunnelled over http/https additional to the ActiveX or Java implementations described above. You can see some of these methods attempted in the URT details section.
"Force URA" means don't waste your time going through the combinations, we know the ports are blocked so just tunnel RDP/VNC/Citrix/Console using https to minimize connection times.