以下是WDK中passthru的例子中的sources文件内容，其中有一些预定义： TARGETNAME=passthru TARGETTYPE=DRIVER C_DEFINES=$(C_DEFINES) -DNDIS_MINIPORT_DRIVER -DNDIS_WDM=1 !if "$(DDK_TARGET_OS)"=="Win2K" # # The driver is built in the Win2K build environment # C_DEFINES=$(C_DEFINES) -DNDIS40_MINIPORT=1 C_DEFINES=$(C_DEFINES) -DNDIS40=1 !else # # The driver is built in the XP or .NET build environment # So let us build NDIS 5.1 version. # C_DEFINES=$(C_DEFINES) -DNDIS51_MINIPORT=1 C_DEFINES=$(C_DEFINES) -DNDIS51=1 !endif # Uncomment the following to build for Win98/SE/WinMe # This causes several APIs that are not present in Win9X to be # ifdef'ed out. # C_DEFINES=$(C_DEFINES) -DWIN9X=1 PRECOMPILED_INCLUDE=precomp.h TARGETLIBS=$(DDK_LIB_PATH)\ndis.lib INCLUDES= SOURCES=\     miniport.c \     passthru.c \     passthru.rc \     protocol.c