The Component Enabler ASP.NET Forms use the Browser Capabilities Component of the

IIS server to identify the browser that the user has connected with. This enables the ASP.NET Forms to tailor the HTML to the different Document Object Models used by Internet Explorer.

The IIS server obtains the information about the type and version of browser from the BROWSCAP.INI file. This contains information current at the time that the IIS software was released, however it might not contain information about more recent browsers.

It is important you keep the BROWSCAP.INI file up to date when new browsers are released. Refer to IIS server documentation for more information on updating BROWSCAP.INI. You should also refer to the Microsoft website for suggested updates, when new browser versions are released.