Checks whether specified feature supported by remote side.
PRL_RESULT PrlSrv_IsFeatureSupported( PRL_HANDLE hServer, PRL_FEATURES_MATRIX nFeatureId, PRL_BOOL_PTR pbIsSupported );
PrlApiDisp.h
PRL_ERR_INVALID_ARG - either invalid/wrong handle or null pointer was passed. PRL_ERR_SUCCESS - function completed successfully.
Please note that actual data presents just after login to server operation was completed.