I'm not sure I understand what you mean when you say that users will have to update the CMD file to avoid collision with other applications. The 3 environment variables `EMULATED`, `IsWorkerRole`, and `LICENSE_KEY` are only seen by the start-up task `newrelic.cmd`. The value for `LICENSE_KEY` comes from the configuration settings which uses the name `NewRelic.LicenseKey`. Another package, vendor, or user could create a new start-up task using `LICENSE_KEY` as an environment variable, populate it with another value, and it _shouldn't_ conflict. 

However, I could be completely missing something and I agree that it's better to be safe than sorry. And it's a really easy change to make. Should `EMULATED` and `IsWorkerRole` be prefixed with `NEWRELIC_` as well?