The INGEAR.NET.GELINK License Manager facilitates WIndows desktop machine license functions for Developer and Single Editions. See Compact Framework Licensing for Windows CE.
From the Windows start bar select:
Start | Programs | INGEAR.NET | NET.GELINK 3.0 | License Manager
Unregistered Licenses
License Manager will show the number of days remaining in the evaluation period.

When the evaluation period has expired you will have the opportunity to Extend the Evaluation License.
Registered Licenses
License Manager will show your Registration and Activation information