PCAUI.DLL provides consistent, high level user interface components for interacting with the Postcode Anywhere service. The dialogues are the same as those found in the Desktop client while having the benefit of inprocess instantiation.

PCAUI.DLL is shipped with the Desktop client and developers are welcome to distribute it with their own applications. Developers should note that future versions of the Desktop client will not be COM based and while backwards compatability at the service level will be maintained, you may have to distribute these components yourself and not rely on a client installation.