Hotfixes for December 2015

Jeff here, from the SDK team with the Holiday Hotfixes. Happy patching. KB2920591   High CPU usage and performance issues occur when access-based enumeration is enabled in Windows 7 Service Pack 1 or Windows Server 2008 R2 Service Pack 1 KB3084463   WSUSutil.exe csaimport fails upon import in Windows Server 2012 R2 or Windows Server 2012 KB3095319 …

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Hotfixes and Patches for Windows for July 2015

Hey SDK friends, Jeff here with the July 2015 Hotfix List 3070714 “0x000000B8” Stop error during MPIO path failover in Windows Server 2008 R2 SP1 3060682 “The specified server cannot perform the requested operation” error occurs when GPO backup is unsuccessful and dynamic updates are disabled in Windows Server 2012 R2  3061817 Windows 8.1 does…

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DNSQuery() Sample To Loop Through Multiple IP Addresses

Jeff from the Windows SDK team here. I had a customer that wanted to just find the IP address that is registered in DNS, i.e., they wanted to get back the single public IPaddress and not any of the other multihomed IP addresses. Most APIs use the DNS Resolver Cache and return all of the…

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getnameinfo() WILL use NetBIOS for name resolution

Jeff here again from the Windows SDK team. A customer pointed out an inconsistency in some MSDN documentation and I wanted to mention it here while the documentation bug works its way through editing. According to the documentation for gethostbyaddr(), getnameinfo() will not use NetBIOS to do name resolution. This is incorrect. The following paragraph is…

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Winsock server application not accepting new connections

Jeff here, from the Windows SDK team. Recently, I had a case involving a client server application. My customer writes software that is deployed to thousands of othercustomers and only 2 were having this problem, so it probably wasn’t a code problem. The server side of the application would stop accepting new socketconnections, but would…

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Getting Linger to RST a connection in .NET

Jeff here again from the Windows SDK Team. Recently, I had a case where the customer required use of the TCP Linger option to reset a connection when it was closed. I was able to get it to work in native Winsock with no problem, but getting the reset to be sent in .NET was…

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How to programmatically inject a list of IP Addresses into the IP Options header in the IP Datagram [ Source Routing ]?

   IP Datagrams gets routed dynamically in the sense, we cannot precisely predict which path every IP Datagram will take to reach the destination. Some times you may need to fix the path[ a set of routers] through which the IP Datagram must travel to reach the destination. IP Source Routing helps you to accomplish…