You can use copies of WebAccess without a Hardkey for Development and Training. The DEMO software control file is limited to 150-tag database.
If you have purchased a copy of WebAccess, you can use a copy of your software license control file instead of the DEMO control file. Without the Hardkey, your license file will run in Simulation Mode. You will be able to access tags equal to your software license tag count.
You could make many copies of your system for Training or engineering development. Communications requires the Hardkey. All the copies would run in simulation (SIMU) mode.