For those who prefer Windows servers over Linux, KEY-POS is now available to run on D3 Windows, formerly known as D3 NT. D3 Windows is an alternative to D3 Linux for users who want to use a Windows-Based server. DBMS still recommends that all NEW users have their KEY-POS servers run on CentOS Linux. Linux is both a community and commercially supported base. Windows has many security holes where Linux does not. Linux is more secure today than it has ever been. Call us today at 1-888-862-0662 to confirm that your system is protected.