Integrate your ASP. NET application with SharePoint

Microsoft documents describe the solution as follows.

 

How to enable an ASP. Net application to run on a SharePoint virtual server

Http://support.microsoft.com/kb/828810? & Clcid = 0x409

Allowing Web Applications to Coexist with Windows SharePoint Services

Http://office.microsoft.com/en-us/winsharepointadmin/HA011608061033.aspx

 

Its core is to exclude the path of your ASP. NET application in the managed path by configuring excluded path.

After this configuration, SharePoint will not process the request under that path, and it will be handed over to your custom ASP. NET application for processing.