Assembly: System.Web (in system.web.dll)
Return ValueThe overridden URL to use in the request; or a null reference (Nothing in Visual Basic) if an overridden URL is not provided.
The OverrideExecuteUrlPath method returns a null reference (Nothing in Visual Basic) unless it is overridden in a class that is derived from the DefaultHttpHandler class.
The OverrideExecuteUrlPath method is called only if ASP.NET is running in worker process isolation mode on Microsoft Internet Information Services (IIS) 6, and if the response was not modified before the DefaultHttpHandler object was called. The response is modified by any of the following.