![]() ![]() Public static class SecurityProtocolTypeExtensions SecurityProtocolTypeExtensions.csnamespace System.Net The definition of the new extensions are in the following files: The file is stored on security-enhanced servers that help prevent any unauthorized changes to the file. Microsoft used the most current virus-detection software that was available on the date that the file was posted. NET Framework 2.0 SP2 applications running on Windows Vista SP2 or Windows Server 2008 SP2 cannot use TLS 1.2 or TLS 1.1, even if those protocols are set in the ServicePointManager.SecurityProtocol property.įor more information about how to download Microsoft support files, click the following article number to view the article in the Microsoft Knowledge Base:ġ19591 How to obtain Microsoft support files from online services Microsoft scanned this file for viruses. Note Windows Vista SP2 and Windows Server 2008 SP2 do not support Transport Layer Security (TLS) protocol versions newer than 1.0. (See the Developer Guidance section for the information on how to use the extensions.) In addition, we have added the SslProtocolsExtensions enumeration that you can use as an option for setting TLS v1.2, TLS v1.1, as well as operating system defaults for the ServicePointManager.SecurityProtocol property when targeting. Note If the application has set the ServicePointManager.SecureProtocol in code or through config files to a specific value, or uses the SslStream.AuthenticateAs* APIs to specify a specific SslProtocols enum, the registry setting behavior does not occur. "SystemDefaultTlsVersions"=dword:00000001įor 32-bit operating systems: NET Framework defaults for a managed application running on the computer.įor 64-bit operating systems: The following registry keys can be set to use the operating system defaults for SSL and TLS instead of the hardcoded. We have made the following improvements in this area: The following files are available for download from the Microsoft Download Center: If your system is fully up to date via Windows Update, you do not need to take further action. To obtain the content, scan Windows Update for the latest. ![]() Note This content has been made available on Windows Update. NET Framework 2.0 SP2 on Windows Vista SP2 and Windows Server 2008 SP2 adds the option to use the SSL and TLS defaults that are provided by the operating system. NET framework version 2.0 Service Pack 2 (SP2) and earlier versions hardcoded the use of Secure Sockets Layer (SSL) v3.0 and Transport Layer Security (TLS) v1.0 by default unless a different protocol version was specified by the. Windows Vista Service Pack 2 Windows Server 2008 Service Pack 2 More. ![]()
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