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Microsoft-DS

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Description: Microsoft-DS is a port used ever since Windows 2000 was introduced. It is used for file sharing. Before Windows 2000, SMB used port 137-139. Windows 2000 added the possibility to use SMB directly over TCP/IP on port 445. If this port is opened, it is used instead of the NBT ports. See Microsoft article : http://support.microsoft.com/support/kb/articles/Q204/2/79.ASP. See also at : http://ntsecurity.nu/papers/port445/.


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