Hey Peter,
Isolator++ fully support VS 17 up to version 15.8 (not included).
Microsoft has made some changes in VS 17 ver 15.8 which might cause integration issues with Isolator ++.
In general, Isolator++ might work perfectly for you even in ver 15.8 and up but we can not assure that.
We are now working on full integration with Isolator++ and VS17 versions 15.8 and above. Stay updated! :)