The main difference between Zyzzyva (the open-source program) and NASPA Zyzzyva (the program intended for use by NASPA members) is that NASPA Zyzzyva offers access to lexicons available only under license.
Licenses issued by NASPA are keyed to individual NASPA members (or other persons approved by the licensors) and are for their use only, in accordance with the license agreement between the licensors and NASPA. NASPA reserves the right to restrict or revoke licenses and the right to restrict the number of devices on which a license is used. Failure to observe these terms may result in suspension of membership.
Lexicons available only under license are called protected lexicons. The source files for protected lexicons are part of the installer, but they are encrypted with keys that the program needs a license to provide. If you have chosen to load a protected lexicon but do not have a valid license, NASPA Zyzzyva will direct you to the Licenses window to deal with that. Until you have a valid license for that lexicon, it will not be available for use.
There are two ways to make a license available to NASPA Zyzzyva, using the Licenses window, which you can open at any time by choosing Tools->Manage Licenses from the main menu:
Claim License: If your computer is online and you know your NASPA Member Services account password, you can claim the license to which you are entitled by virtue of your active membership. Click this button to open a browser window, select NASPA as your issuer, enter your member ID and password, and the license will be delivered and added to your local store.
Add Licenses: You may also acquire a license from the issuer by email or other means. If your computer is not connected to the Internet, you may have a license stored on a USB key or other media. Click this button to search the file system for one or more licenses to add to your local store.
Delete Licenses: Click this button to delete licenses that are out of date or no longer to be used.
Activate Licenses: Click this button to contact the license issuer and request license activation if the window indicates "must reactivate" or "not activated" or if you see warnings about activation at startup. You must be online to do this. License reactivation must be done periodically, by each user on each computer, to verify your eligibility as a member and to keep track of the number of devices using your license. It's a good idea to do this if you expect to be offline for an extended period, because protected lexicons without a valid, activated license can only be used for word judging.
Export License: If you have a license in your local store, and you need to export it to a USB key or other media so that you can install it on another computer (or for the use of another user on this computer), select the license to export and click this button.
NASPA Zyzzyva will warn you of license expiry within 30 days. Upon expiry, you will no longer have access to the protected lexicons made available by that license, even for word judging, so it is important to make sure that you claim a renewed license before then.
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