BANTExt

I have a problem...

I have a machine with win2000 that it cant boot, before
login. In a safe mode, in the administrative tools, i have
seen that BANTExt file cant load.

I have tried to repair win2k, whit ERD and automatically,
but the problem persists.

Before this problem, my machine dosnt boot because a
problem with the MBR, then i had to format the MBR (i had
multiboot with debian!!!!)

any solution?