activating Ghostcast server --where to put the slf license file?

I'm installing Symantec Ghost Standard Tools 3.1.  Where do I put the slf license file?  I only use Ghostcast server.  It tests fine with a single box, but I won't have time Saturday when I ghostcast an entire lab at once if it tells me it can't multicast or whatever because the license isn't activated.  The only instructions I can find simply say to put the slf file "in the appropriate place." So where is this "appropriate place?"