求助:DDK编译的问题

我编译walter oney书里面的filter例子,source file 为.cpp类型,可是编译后出现please convert the source file to either DOS or UNIX format错误,该怎么解决啊,高手给点指点~~~

??
1.试试,将源文件COPY到VC中,再重新保存.
2.试试,将源文件改为.c,不过也相当要改SOURCE文件.

还是不行啊,出错信息如下:
BUILD: Compile and Link for x86
BUILD: Start time: Fri Mar 23 15:17:07 2007
BUILD: Examining d:\sys directory for files to compile.
BUILD: Compiling and Linking d:\sys directory
_NT_TARGET_VERSION SET TO WINXP
Compiling resources - driver.rc
Compiling - driverentry.cpp
errors in directory d:\sys
d:\sys\stddcls.h : error C4335: Mac file format detected: please convert the sou
rce file to either DOS or UNIX format
Linking Executable - objfre_wxp_x86\i386\filter.sys
link : error LNK1181: cannot open input file 'd:\sys\objfre_wxp_x86\i386\drivere
ntry.obj'
BUILD: Finish time: Fri Mar 23 15:17:08 2007
BUILD: Done

    4 files compiled - 1 Error
    1 executable built - 1 Error
哪位高手指点下,急~~

d:\sys\stddcls.h : error C4335: Mac file format detected: please convert the sou
rce file to either DOS or UNIX format

把stddcls.h也照上面的方法Convert一下，不就是这个相同的错误吗。

问题解决了,是stddcls.h中的一个非法字符,谢谢大家