DDEInitiate (cServiceName, cTopicName)
This function establishes a dynamic data exchange (DDE) channel between Visual FoxPro and another Microsoft Windows-based application.
cServiceName - Specifies the service name of the server application, which, in most cases, is the name of the executable file without its extension.
cTopicName - Specifies the topic name. The topic is application-specific and must be understood by the application.