Greetings BStory,
I am unsure whether you will find this as they are designed for entirely different customers. There are some things to note though, NIS is a consumer product and is designed for Home use while SEP is a corporate product. This means the SEP product will have more management functionality for policies and what not while the NIS product will be completely under the control of the user. With SEP you can prevent them from disabling/uninstalling it or a range of other items.
The consumer versions of our products sometimes have newer technology that has not been tested in corporate environments so you would want to be careful in this area and maybe do a test install before sending it out.
Lastly, the support you get with the product has broader scope in corporate than in our consumer line.
Not exactly what you were looking for though I hope it helps.