Logon Support for RFC with Dialog
The following functions are to be used with R/3 Release 3.0C onwards. They provide the same functionality as their equivalents without the ‘Ex’ extension, but under Windows NT and Windows 95 in the 32-bit version they support RFC with dialog. In order to provide this new functionality in conjunction with the Visual RFC Service Provider, the following new functions are introduced:
The SAP gateway host and SAP gateway services are no longer needed. See RFC API documentation for RFC_MODE_VERSION_3.
RFC with dialog support is only supported under a 32-bit Windows environment (Windows NT, Windows 95).
You ought to use functions which return the RFC_HANDLE in the 32-bit environment.