As of this version of PageSnip there appear to be no Internet Explorer browser extensions for Safari PC.
Because of this it is not possible to use PageSnip inside Safari PC at this time.
If an IE extension becomes available then PageSnip should work with it just as well as it does for users of FireFox and Opera.
Note: PageSnip automatically detects Safari PC installs and makes that available as one of the launch options from the Snip Information button. This makes it easy to use Safari PC to return to a URL where a snip was taken.