Unlocking support for optional features, such as LEADTOOLS Document/Medical capabilities, is accomplished using the following configuration files:
Each configuration file contains a type of feature and its value. You need to fill this value with your key to unlock that special feature. For example Leadtools.Services.Raster.ServiceImplementations.dll.config contains the following section:
<setting name = "AbcKey" serializeAs="String">
<value>YourKey</value>