[1] Deploying a Runtime Application Using Internet Explorer ( 版) https://msdn.microsoft.com/en-us//library/a7as3z1d(VS.80).aspx

ASP.NET applications specify configuration information using a web.config file. Web applications can supply configuration information, just as ASP.NET and an executable host do. If an application hosted in Internet Explorer has a configuration file, the location of the configuration file is specified in a <link> tag with the following syntax:

<LINK REL="CONFIGURATION" HREF="[configuration file name]"></LINK>