The evil wind that bombed Manhattan’s World Trade Center nevertheless blew some good to the disaster recovery specialists: SunGard Data Systems Inc says it has been contacted by four subscriber companies seeking disaster recovery services following the blast – two in Four World Trade Center, one in Two World Trade Center and one in One World Trade Center; and Comdisco Inc said it is providing disaster recovery services to three financial services companies hit by the blast, while IBM Corp’s disaster recovery unit said it had been in touch with a lot of its customers, but that so far none of its customers had had to declare their workplaces to be disaster areas.