This support function allows your ISAPI extension to map a logical URL path to a physical path.
This support function was reported to have been deprecated in IIS version 5.1 in favor of HSE_REQ_MAP_URL_TO_PATH_EX, but that is not the case. HSE_REQ_MAP_URL_TO_PATH_EX is useful only to DAV programmers. The path size of the HSE_URL_MAPEX_INFO structure which is used by HSE_REQ_MAP_URL_TO_PATH_EX is limited to MAX_PATH length.
BOOL ServerSupportFunction( HCONN ConnID, DWORD dwServerSupportFunction, LPVOID lpvBuffer, LPDWORD lpdwSizeofBuffer, LPDWORD NULL );