I learned all of the above from a simple web search on 'Total Commander NVDA Add-On' and looking strictly at the first six returned results, digging a bit further into the links given in the post from this group noted above. A web search on 'Total Commander NVDA Add-On' turns up two pertinent topics, one on this very group and another on the freelists NVDA Add-Ons list: which gives the direct link to an existing NVDA Add-On called Total Commander enhanced on Github (and whose author has posted recently to one of the blind technology lists) that has been updated to work with NVDA 2019.1: This is why doing web searches is absolutely essential, and something that should be done first, before asking anywhere. The fact that Total Commander is just a jazzed up version of File Explorer, which will very soon be getting a tabbed version under Windows 10, makes it quite unlikely that anyone is going to devote any new effort to this at this time, but the existing one should work. It is not a part of the core function of NVDA to make every application that exists accessible, and that's why the multitude of add-ons exist, and one already exists. Like all applications that fall into this group, that means an add-on would need to be created to make it accessible. It is clear that Total Commander is not exposing things to the screen reader either because it's coded 'irregularly' or uses old Windows style code while NVDA is trying to keep up with more recent versions.

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