Mathcad PDSi viewable support error

Some customers are seeing the following message when installing Mathcad:

Mathcad PDSi viewable support: Setup has detected that you already have a more functional product installed. Setup will now terminate.

Mathcad is trying to install an Adobe driver but a more recent version of the driver is already on your computer.

You can ignore the message and continue with the installation. This has no impact on Mathcad.