Anticipating Microsoft Corp’s launch of MS-DOS 6 next week, Novell Inc yesterday previewed DR DOS 7, which will include integrated NetWare client support, peer-to-peer networking, a network management agent, network installation, pre-emptive multi-tasking, enhanced memory management and desktop security, and protected mode drivers. The company is calling the thing Novell DOS 7, and says it will be available in the summer. The company claims that the new release will also continue to provide the best foundation for Microsoft Windows by offering Drag-and-Drop network resource capabilities. DOS Protected Mode Services is an application programming interface that enables device drivers and terminate and stay resident programs to reside in extended memory and execute in protected mode on 80286 computers and up, greatly reducing demand for conventional memory. The applications programming interface is available now as a Software Developers Kit at $200, and Novell DOS 7 will include several Protected Mode Services client components including disk cache and compression drivers, a peer-to-peer server, and CD-ROM extensions. No firm date or price was given for DOS 7.