"I've created a service using ActiveState PerlSvc" - That is a huge leap with no code shown for your service. Did you read: PerlSvc Overview?

You have to add some stuff to your source code in order to make a service. What did you do? When you used PerlSvc to make the .exe, I hope that you used the defaults to make a standalone service, but you don't say. Whether or not your account has network access doesn't matter - get your service to run on your machine and use it by a local program before trying to get other machines involved. Start by making some super simple service and I would search the web for some simple example.