This utility lets ASP.NET interface with IIS to perform the configurations that are required to run a managed application. One of these configurations creates the necessary keys in the registry hive to enable persistence of auto-generated machine keys.

ASP.NET sequentially executes requests that have the same SessionID. This means that you may see the requests collecting in the queue if there are lots of concurrent requests that have the same SessionID.

For more information about these issues and the workarounds that are available, click the following article numbers to view the articles in the Microsoft Knowledge Base. Lists the known issues for .NET Framework 4.5.2.

.NET 8.0 has been refreshed with the latest update as of February 10, 2026. This update contains security fixes. See the release notes for details about updated packages. .NET 8.0 servicing updates are upgrades. The latest servicing update for 8.0 will remove the previous 8.0 update upon successful installation.

此更新解决了 ASP.NET 中可能导致信息泄漏的漏洞。 如果攻击者成功利用该漏洞，则可以读取服务器加密的数据（例如视图状态）。

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ASP.NET の脆弱性を解決します。 この脆弱性で情報漏えいが起こる可能性があります。 この脆弱性の悪用に成功した攻撃者が、サーバーで暗号化したビューステートなどのデータを読み取ってしまう可能性があります。

With this change, credential dialogs do not respond to virtual keyboard input from remote desktop or screen sharing tools or apps. For more information, see New behavior restricting certain applications to autofill credentials introduced by the Windows January 2026 security update.

We recommend that you use the web installer instead of the offline installer for optimal efficiency and bandwidth requirements. When you install this package, you can see following packages or updates installed as per operating system:

NET 8.0 has been refreshed with the latest update as of January 14, 2025. This update contains both security and non-security fixes. See the release notes for details on updated packages. .NET 8.0 servicing updates are upgrades. The latest servicing update for 8.0 will remove the previous 8.0 update upon successful installation.