[simog]

Don't believe that Sonar v8 supports vst3 technology. Also, the Virus Control installer doesn't select the vst3 option by default so unless you checked the box during the setup to include it for installation, you most likely don't have it installed.

You will be running the vst2 vc.

When you say vsti program to use it with, do you mean a wrapper so you can run the VC standalone?

If that is the case and you don't want to run it in a DAW then you could try this link:

http://www.hermannseib.com/english/savihost.htm

HTH,

Simon