First of all, I want to say that the updater, the options dialog and so on are quit accessible to blind users.
Would it be possible to modify the portableApps menu so screenreaders can read the Dialog and programm names?
the Menus are accessible allready.
If you need more help I'll contact you with the developers of NVDA. An opensource screenreader for windows.
John has something planned for this already: https://portableapps.com/node/28780
I see you've found that topic. Rest assured, it's coming.