I have had a great deal of problems getting Photo to work as a plugin to photoshop.
I love Topaz soooooo much I have spent many hours finally to get everything functioning.
I kept getting an error message.
Repaired.
Reinstalled
Still no go.
So this is my reinstall instructions if you are having issues.
Uninstall Topaz photo. Restart PC. Reinstall photo. Wait for all the components to install. 109 in total.
If you have a bad Internet and you get a message Internet connection needs checking. The install will wind back and uninstall. Follow the instructions to uninstall. Only this time keep all data etc options. Restart the pc. Reinstall not repair and the missing components will install .
I just love this software and spent many hrs to finally work a way that works.
Hope this helps !
Ian Findlay.