Novell Inc has intensified its dispute with Microsoft Corp over use of its requester technology in Windows for Workgroups and has invoked a clause in its technology-swapping agreement that bars Microsoft from shipping NetWare code in future Windows products, PC Week reports. The two are negotiating to resolve the dispute, but if they fail to reach agreement, Microsoft would have to develop its own technology for linking Windows clients to NetWare or license similar code from a third party. Novell could seek an injunction, on copyright infringement grounds, to bar Microsoft from including NetWare code in Windows for Workgroups.