DDKWIZARD+VS2003无法编译

我照网上的说法添加了好多个环境变量，包括DDKROOT,W2KBASE,WNETBASE,WXPBASE，然后装了DDKWIZARD，接着建立一个DDK PROJECT，往里面加现有的C文件，可是按下ctrl+f7不能编译，或者说编译的按钮是灰色的，但是生成XXXX.WXP，按下后出现
“------ 已启动生成: 项目: EmptyDriver3.WXP, 配置: WXP free Win32 ------

正在执行生成文件项目操作
OSR DDKBUILD.CMD V7.2 (2008-04-14) - OSR, Open Systems Resources, Inc.
DDKBLD: >> Setting custom environment variables [ddkbldenv.cmd] ...
DDKBLD: << Finished setting custom environment variables [ddkbldenv.cmd] ...
DDKBLD: >> Performing pre-build steps [ddkprebld.cmd] ...
DDKBLD: << Finished pre-build steps [ddkprebld.cmd] ...
DDKBLD: WXP (free) using the Windows XP DDK and %WXPBASE%
DDKBLD: Directory: D:\MYDRRI~1\EMPTYD~3\EMPTYD~1
DDKBLD: WXPBASE: D:\WINDDK\3790
DDKBLD: Run build -Ze -MI for free version in .
BUILD: Adding /Y to COPYCMD so xcopy ops won't hang.
BUILD: Using 2 child processes
BUILD: Object root set to: ==> objfre_wnet_x86
BUILD: Compile and Link for i386
BUILD: d:\mydrri~1\emptyd~3\emptyd~1\sources(4): Unsupported TARGETTYPE value -
BUILD: Examining d:\mydrri~1\emptyd~3\emptyd~1 directory for files to compile.
    d:\mydrri~1\emptyd~3\emptyd~1
BUILD: Compiling d:\mydrri~1\emptyd~3\emptyd~1 directory
BUILD: Done
DDKBLD: Build complete
DDKBLD: Building browse information files
DDKBLD: >> Performing post-build steps [ddkpostbld.cmd] ...
DDKBLD: << Finished post-build steps [ddkpostbld.cmd] ...

生成日志保存在“file://d:\mydrriver\EmptyDriver3\EmptyDriver3\\BuildLog.htm”中
EmptyDriver3.WXP - 0 错误，0 警告


---------------------- 完成 ---------------------

    生成: 1 已成功, 0 已失败, 0 已跳过
”
可是按下F5，却弹出“调试会话的可执行文件”
请问怎样才能生成。sys文件呢？
我确定已经按照网上的步骤做好准备了，包括上面说的，还有在VS里面设置“VC++目录”