Please help me with that problem:
1>------ Build started: Project: hack, Configuration: Debug Win32 ------
1>Compiling...
1>base.cpp
1>c:\users\p200\documents\visual studio 2008\projects\hack\hack\base.cpp(4) : fatal error C1083: Cannot open include file: 'd3dx9.h': No such file or directory
1>Build log was saved at "file://c:\Users\p200\Documents\Visual Studio 2008\Projects\hack\hack\Debug\BuildLog.htm"
1>hack - 1 error(s), 0 warning(s)
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========