Demo version of GPMAW.

As a demo version of GPMAW, you can use any version, even the most recent.

You must contact Lighthouse data for a demo license key. This is valid for 4 weeks and requires that the program has access to the Internet during startup.

If you do not provide a number, the program starts in Demo mode, and closes down after 10 minutes. A timer in the title bar shows the remaining time.

Site last updated: August 30, 2026