求助编译fastfat出现了如下26个错误！！！！！！！！！！

allocsup.c(2615) : error C4715: 'FatInterpretClusterType' : not all control paths return a value
allocsup.c(2615) : error C2220: warning treated as error - no object file generated
fatinit.c(309) : error C2220: warning treated as error - no object file generated
fatinit.c(309) : error C4242: '=' : conversion from 'unsigned long ' to 'unsigned short ', possible loss of data
fileinfo.c(4170) : error C2220: warning treated as error - no object file generated
fileinfo.c(4170) : error C4244: '=' : conversion from '__int64 ' to 'unsigned long ', possible loss of data
fsctrl.c(3903) : error C2220: warning treated as error - no object file generated
fsctrl.c(3903) : error C4018: '>' : signed/unsigned mismatch
fsctrl.c(4525) : error C4242: '=' : conversion from 'unsigned long ' to 'unsigned short ', possible loss of data
pnp.c(66) : error C2157: 'FatCommonPnp' : must be declared before use in pragma list
pnp.c(67) : error C2157: 'FatFsdPnp' : must be declared before use in pragma list
pnp.c(132) : error C4013: 'FatCommonPnp' undefined; assuming extern returning int
pnp.c(185) : error C4142: benign redefinition of type
pnp.c(242) : error C2065: 'IRP_MN_SURPRISE_REMOVAL' : undeclared identifier
pnp.c(242) : error C2051: case expression not constant
pnp.c(264) : error C4013: 'IoSkipCurrentIrpStackLocation' undefined; assuming extern returning int
pnp.c(332) : error C4013: 'FatLockVolumeInternal' undefined; assuming extern returning int
pnp.c(350) : error C4013: 'FatFlushAndCleanVolume' undefined; assuming extern returning int
pnp.c(350) : error C2065: 'Flush' : undeclared identifier
pnp.c(361) : error C4013: 'IoCopyCurrentIrpStackLocationToNext' undefined; assuming extern returning int
pnp.c(410) : error C4020: 'FatCheckForDismount' : too many actual parameters
pnp.c(516) : error C4013: 'FatUnlockVolumeInternal' undefined; assuming extern returning int
pnp.c(564) : error C2065: 'NoFlush' : undeclared identifier
pnp.c(575) : error C4020: 'FatCheckForDismount' : too many actual parameters
pnp.c(702) : error C4020: 'FatCheckForDismount' : too many actual parameters

我没有改的阿，用的是ifs win2000下的