Microsoft has released a Microsoft security advisory about this issue for IT professionals. The security advisory contains additional security-related information. To view the security advisory, visit the following Microsoft website: http://www.microsoft.com/technet/security/advisory/2269637.mspx Microsoft has released new API enhancements for Windows to help developers correctly and securely load external libraries. For more information, visit the following Microsoft webpages: [SetDefaultDllDirectories](http://msdn.microsoft.com/en-us/library/hh310515(VS.85).aspx) [AddDllDirectory](http://msdn.microsoft.com/en-us/library/hh310513(VS.85).aspx) [RemoveDllDirectory](http://msdn.microsoft.com/en-us/library/hh310514(VS.85).aspx) On systems other than Windows 7, Windows Server 2008 R2, Windows Vista or Windows Server 2008, this package installs successfully, but does nothing. This update is required for .NET Core on Windows 7 or Windows Server 2008 R2.