Comment 1 by jteh on 2013-04-13 00:14
Are you running an installed official build of NVDA? These dialogs would be running as administrator. I've definitely been able to interact with these dialogs (in fact, with the !VirtualBox installer as well). (They do have a habit of appearing behind the installer, so you have to alt+tab to them, but this isn't anything to do with NVDA.)

Comment 2 by k_kolev1985 on 2013-04-13 07:28
Well, I'm running an installed copy of NVDA, but it is a snapshot and not the official stable release. I have the stable release as well, but it is a portable copy and not an installed one. Does that matter?

I can see the dialog appear on the screen in front of the VirtualBox installer and I can move the system focus in it, but NVDA does not speak anything.

@k_kolev1985, do you have more information about this issue that you could share so that I, and others can replicate it? Also, an error log demonstrating the issue also may be useful.

Actually, not much really. I haven't encountered such a dialog in a long time and I've stopped using VirtualBox a long time ago. But I was able to reproduce the issue again recently, while installing ViewScan from https://www.hamrick.com. It installs a scanner driver and the same security prompt appears. If I remember correctly, I had to restart NVDA to make it read that dialog prompt. The only specific setting to my system that I can think of is that I'm using the "High-Contrast Black" theme in Windows, but would that matter (?) - I don't know.

I am able to interact with these dialogs both on Windows 7 and on Windows 10. @k-kolev1985 Are you still having this issue? If not i vote to close it.

@lukaszgo1 Try it with high-contrast enabled in Windows and see if you'll have the same results. I may try it with high-contrast disabled these days if I get a chance and see if that makes any difference for me.

@k-kolev1985 I've tried with high-contrast enabled on Windows 10 1903 and Virtual Box installer and these dialog are accessible for me - they even automatically gained focus.

Since I hadn't the chance to test this again (I didn't came across such dialogs) and I don't have NVDA logs with reproducing the issue, we might as well close the ticket/issue and reopen it if I can someday reproduce the issue and provide some NVDA logs for it.

It might also depend on which level you have set on UAC. Or if you have the right privileges on the system.
Anyway, it seems we do not have real chances to reproduce this issue and it is really difficult to investigate further. If you still see this issue and it is not solved after starting NVDA as administrator or after changing UAC level, please comment on it and we can reopen.
Try also running the COM registration fixing tool.