Feature Only in Enterprise Edition This feature is supported only in Visual C++ Enterprise Edition. For more information, see Visual C++ Editions.
The following four components are involved in using Visual C++ Enterprise Edition to debug ISAPI DLLs and filters:
The web browser can run on any computer and does not require any special setup options.
You must run the Visual C++ debugger on the same computer that is running IIS in order to debug the ISAPI DLLs and filters and SQL source. This is because you must use the Visual C++ debugger to debug the INETINFO.EXE. That is, you cannot run the debugger and the IIS on different computers.
You must also configure SQL Server as an NT service.