LoadLin doesnt works in Win2000

Without Dos Mode, Loadlin is unable to load linux. It detects V86 mode but unable to find VCPI support. At the last it says not enuf memory/(load buffer size)Please help coz my boot floppy might get damaged du to excessive use and I certainly dont want to use LILO coz i dont want to disturb MBR. My Computer has 3 OS WIN2000, Win Me, Linux.