Stonefield Query is licensed on a per-user basis. That means each user who wants to create and/or run reports in Stonefield Query requires a license. Here's how licensing works:
Until Stonefield Query has been activated, it runs in "unactivated" mode. You are asked each time you run Stonefield Query if you want to activate it. If you choose to do so, a Registration dialog appears. On the last page of this dialog is a registration number. This registration number is based on several factors, one of which is information about the system where Stonefield Query is installed (not necessarily the workstation it's running on, but the system where the program resides). When given the registration number, Stonefield Software Inc. provides an activation code to register Stonefield Query. The activation code is also based on several factors, including the registration number, serial number, and number of licenses purchased. Licensing information is stored in a file named SFQuery.lic in the Data subdirectory of the program folder. For an unlimited license file, the file is named UNLIMITED.LIC.
Users in the Administrators user group (such as the ADMIN user) are the only ones who have access to the Maintain Users and Groups dialog in Stonefield Query. In that dialog, an administrative user can only define as many user names as there are licenses. They can also specify which users use which licenses if more than one type of license is installed. For example, if there are two Report Designer and five Report Viewer licenses, they can define up to two users as Report Designers and five users as Report Viewers.
When you log in, Stonefield Query does two checks. The first is how many users are currently running Stonefield Query. If all licenses are currently in use (for example, five users are currently in Stonefield Query and there are five licenses in total), you are informed of this and Stonefield Query terminates. The second check is whether another user is logged in with the same user name. If so, you are informed of this and Stonefield Query terminates. So, Stonefield Query licensing is a combination of named users (you can only define as many user names as there are licenses) and concurrent use (only as many users as there are licenses can be logged in at the same time).
The License Manager in the Tools menu, which is only available for users in the Administrators user group, can be used to add or remove Stonefield Query licenses or see the currently installed licenses.