I have tried to use Island Logix's SPICE packages off and on over the years. There is a major bug that will cause the program to switch to DEMO mode and they will not run after this. I have ran into this problem several times over the years since they first introduced VisualSPICE. There is a running link on their site for this bug that NEVER gets fixed. It is hit and miss when you are able to get it running again.
Support actually used to be alright back when they were selling turbosim and the short lived turbosim32. This is going back about 10 years or more. After this it was all down hill.
A lot of promice of features that never came to be. Etc.
What is sad is IMO VisualSPICE actually had a lot of potential in the beginning. They had some good ideas with their user interface.
IMO, I would stay away. The license problem alone is enough to cause the major health warnings that the previous reviewer spoke of.