Overview of NetBIOS-over-TCP/IP

Windows for Workgroups' native networking architecture provides users in a small local area network with limited file- and printer-sharing capabilities. Users can connect to other Windows for Workgroups PCs, and use other systems' shared resources.

This functionality is a result of the combined functionality offered by a collection of various networking components. The following diagram illustrates the interaction between these components. We'll discuss these components in more detail in just a moment.

+-------------------------------------------------------+
|       Network Driver      |                           |
+---------------------------+                           |
|   Redirector and Server   |    NetBIOS Applications   |
+---------------------------+                           |
|   Server Message BLocks   |                           |
+---------------------------+---------------------------+
|                      NetBIOS APIs                     |
+-------------------------------------------------------+
|               NetBIOS-over-TCP/IP (NBT)               |
+-------------------------------------------------------+
|            Transport Driver Interface (TDI)           |
+-------------------------------------------------------+
|            TCP/IP Suite for Windows TCP/IP            |
+-------------------------------------------------------+

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Overview of NetBIOS-over-TCP/IP (NBT)