unable save build.dat的问题

按照书上说的，WDM在98和2000下是源码级兼容的，实际上我把2000下的源码放到98环境下编译是无法通过的，错误如下：
F:\FILTER>build
BUILD: Compile and Link for i386
BUILD: Computing Include file dependencies:
BUILD: c:\progra~1\micros~1\vc98\include\exdisp.odl(31): c:\progra~1\micros~1\v
98\include\exdisp.odl - invalid include statement: importlib(STDOLE_TLB);
BUILD: c:\progra~1\micros~1\vc98\include\vidsvr.odl(16): c:\progra~1\micros~1\v
98\include\vidsvr.odl - invalid include statement: importlib(STDOLE_TLB);
BUILD: Examining f:\filter directory for files to compile.
    f:\filter - 5 source files (1,550 lines)
BUILD: Unable to save the dependency database: \nt\build.dat
BUILD: Compiling f:\filter directory
Compiling - filter.rc for i386
Compiling - filter.c for i386
Compiling - pnp.c for i386
Compiling - power.c for i386
Compiling - util.c for i386
BUILD: Linking f:\filter directory
Linking Executable - obj\i386\checked\filter.sys for i386
link() : error LNK1104: cannot open file "obj\i386\checked\filter.sys"
BUILD: Done
请问这是为什么呢？