Gets or sets the HttpApplication object for the current HTTP request.
Assembly: System.Web (in System.Web.dll)
Property ValueType: System.Web.HttpApplication
The HttpApplication for the current HTTP request.
ASP.NET uses ApplicationInstance instead of Application as a property name to refer to the current HttpApplication instance in order to avoid confusion between ASP.NET and classic ASP. In classic ASP, Application refers to the global application state dictionary.
The Web application is running under IIS 7.0 in Integrated mode, and an attempt was made to change the property value from a non-null value to null.
Windows 7, Windows Vista SP1 or later, Windows XP SP3, Windows XP SP2 x64 Edition, Windows Server 2008 (Server Core not supported), Windows Server 2008 R2 (Server Core supported with SP1 or later), Windows Server 2003 SP2
The .NET Framework does not support all versions of every platform. For a list of the supported versions, see .NET Framework System Requirements.