Starting an RFC Server Program Via SAProuter
An RFC server program can be started by a Gateway, by the currently running SAP application server or by the currently running SAPGUI. Using the registering feature the RFC server program can be started before and then it registers at an Gateway and then waits for RFC requests.
According to the way of starting an RFC server program and to the Release of the SAP system, there are different ways for RFC server programs to work with SAProuters.