为什么dsound老是出错？

hadloven

我在用dsound头文件时。出现编译错误：
:\program files\microsoft directx 9.0 sdk (april 2005)\include\dsound.h(305) : error C2146: syntax error : missing ';' before identifier 'dwReserved1'
c:\program files\microsoft directx 9.0 sdk (april 2005)\include\dsound.h(305) : error C2501: 'DWORD_PTR' : missing storage-class or type specifiers
c:\program files\microsoft directx 9.0 sdk (april 2005)\include\dsound.h(305) : error C2501: 'dwReserved1' : missing storage-class or type specifiers
c:\program files\microsoft directx 9.0 sdk (april 2005)\include\dsound.h(306) : error C2146: syntax error : missing ';' before identifier 'dwReserved2'
c:\program files\microsoft directx 9.0 sdk (april 2005)\include\dsound.h(306) : error C2501: 'DWORD_PTR' : missing storage-class or type specifiers
c:\program files\microsoft directx 9.0 sdk (april 2005)\include\dsound.h(306) : error C2501: 'dwReserved2' : missing storage-class or type specifiers
执行 cl.exe 时出错.
Creating browse info file...
好像是  DWORD_PTR  有问题，想必大家都经历过这个吧，请大家指教指教。