This article was previously published under Q186455
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The Microsoft SNMP service opens the TCP/IP trap socket 162 in exclusivemode. This disallows other management tools from also opening the socket.On starting, SNMP manager software may report an error referring to socketnumber 162. Additionally, the SNMP management software will not be able toreceive traps from SNMP hosts.
The Mgmtapi.dll route SnmpMgrTrapThread opens socket 162 in exclusive modewhen this socket should be opened shared.
To resolve this problem, obtain the latest service pack for Windows NT 4.0 or Windows NT Server 4.0, Terminal Server Edition. For additional information, click the following article number to view the article in theMicrosoft Knowledge Base:
152734 How to Obtain the Latest Windows NT 4.0 Service Pack
Microsoft has confirmed that this is a problem in Windows NT 4.0 and Windows NT Server 4.0, Terminal Server Edition. This problem was first corrected in Windows NT 4.0 Service Pack 4.0 and Windows NT Server 4.0, Terminal Server Edition Service Pack 4.