Problem with instalation of Vocalizer driver

Tea Turković

Hi all,

I am trying to install Vocalizer expressive driver add-on version
3.0.14 on the PC at my job, and I have an issue with instalation of
mentioned add-on.

When I try to install the driver add-on, I get the following message:
Add-on not compatible: Instalation of Vocalizer expressive 1.1 driver
3.0.14 has been blocked. An updated version of this add-on is
required, the minimum add-on API supported by this version of NVDA is

I have NVDA version 2020.4, Windows 10 build 14393.
I have been trying to install this add-on since NVDA 2020.1, but same
message appeared every time.

How can I fix this issue and install the driver?

Many thanks in advance!

Kind regards,
Tea Turkovic

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