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Hi Michael,

JAWS does support IAccessible2, but only if it needs to, like in Firefox, and some parts of 
Chromium-based browsers. However, with the UI Automation implementation for the latter becoming 
stronger, there might be a time when JAWS moves to UIA for web content support in Chromium 
browsers. But you never know what plans Vispero actually has for which version of JAWS, ZoomText, 
and Fusion. All I notice is that, with Windows 11 having an even stronger UIA implementation than 
10, more things are being done through that interface rather than traditional MSAA or IAccessible2 
channels where possible. And as has been said elsewhere, UIA properties and events are even very 
accessible from within the JAWS scripting language, which makes this even more compelling because 
the end user experience can be customized further. As IAccessible2 is an extension of MSAA, and 
MSAA is largely deprecated by Microsoft, it will probably never get the same treatment.


-----Original Message-----
From: Michael Weghorn <> 
Sent: Tuesday, June 7, 2022 1:27 PM
To: Christophe Strobbe <>;;
Subject: Re: [libreoffice-accessibility] Re: ESC meeting minutes: 2022-05-26 [IAccessible2 support 
in JAWS]

Hi Christophe,

On 07/06/2022 12.14, Christophe Strobbe wrote:
After some online searching, it seems that JAWS at least used to support IAccessible2, originally 
mainly for IBM Lotus Symphony.
According to a tweet by Marco Zehe from December last year, JAWS 
handles Chromium and Edge via IAccessible2. (See )

That sounds promising, JAWS was what I vaguely had in mind about having been mentioned of 
presumably not supporting IAccessible2 (well) in the past.

Twitter is not an ideal source, but I couldn't find any documentation related to IAccessible2 on 
Freedom Scientific's website. They do have documentation on to use script access to UIAutomation: but nothing similar 
for IAccessible2.
This calls for some LibreOffice testing with JAWS; I hope to do some of that next weekend.

Thanks a lot, that's much appreciated!

Best regards,

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