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Floating/network licenses allow multiple users to install and use a limited number of licenses on multiple machines.
Example
Suppose you have 10 workstations where Program X is used. In most cases there are fewer than 10 users concurrently using the application. Instead of purchasing 10 licenses, you can only purchase the number of floating licenses to support the number of concurrent users. Some highlights of the benefits of floating licenses include centralized license management and maximum utilization of each license.
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