I tried the designer right now at work. To be able to login using my forum account (thus be connected to the internet) i need to start the application without administrative privileges.
-> i can register, ExtDesigner asks me to continue trial -> after click, ExtDesigner closes (means no application window appears, but ExtDesigner.exe still stays in the TaskManager)
After trying to run the ExtDesigner with Administrative privileges i cannot login, because i don't have internet access when using an admin account here at work
I understand you need internet access to authenticate the user, but it should work without admin rights, i think. I'll try it at home later
Just the same as jburnhams mentioned some posts above (where you assumed he still uses a preview version)