Visual BASIC Custom Controls (VBX, OCX) - also available as DLLs (custom controls for use with the Windows SDK Dialog Editor)
NetCOM VBX
Implements all standard NetBIOS facilities. Supports interprocess communication on the same PC as well as between workstations and servers. Compatible with all networks that support NetBIOS (LAN Manager, LAN Server, Novell, Banyan VINES, LANTastic, Windows for Workgroups, etc.).