Most Worrisome Risk Of Running An Unsupported OS

There are many risks an enterprise is facings when WS2003 expires, and security, compliance and vulnerability management were the most concerning to respondents, drawing nods from 55 percent of respondents while 31 percent pointed to increased support costs and downtime as what they are most concerned about.
AppZero says the only way to support Server 2003 after the EOS deadline will be to have an active premium support contract in place with Microsoft, and also to arrange a Custom Support Agreement (CSA), which imposes additional, significant expenses. AppZero cites a report published in June by Gartner that says those who plan to continue to run WS2003 past the deadline should budget $1,500 per year per server.