Spoke too soon. Not working in MDL, Astroart, or SG Pro.
I worked with Sharpcap for a while. Could not get the native driver working. Using the ASCOM driver lets me get the camera started, but as soon as I change any parameters the exposure time does strange things, like it rolls over itself and restarts, shows negative numbers, or never completes an exposure. Then the download time goes up to 30-60 seconds or more, or it may even freeze. I have a couple EOS cameras, for which these programs all work correctly, so there must be a fix. Let me know what else I might try or what more info you need. At a minimum I need to get this going in SG Pro and Sharpcap.